The archimedean assumption in fuzzy set theory

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阿基米德原理英语

阿基米德原理英语

阿基米德原理英语Archimedes' PrincipleArchimedes' principle, named after the Greek mathematician and scientist Archimedes of Syracuse, states that an object immersed in a fluid experiences an upward buoyant force equal to the weight of the fluid displaced by the object.To understand this principle better, let's start by examining the concept of buoyancy. Buoyancy refers to the upward force exerted by a fluid on an object immersed in it. This force enables objects to float or to feel lighter when submerged in a fluid than they do in air.According to Archimedes' principle, the buoyant force acting on an object submerged in a fluid is equal to the weight of the fluid displaced by the object. To determine the buoyant force, we need to find the weight of the fluid displaced.The weight of the fluid displaced can be calculated by using the formula:Weight of fluid displaced = density of fluid x volume of fluid displaced x acceleration due to gravity.The density of a substance refers to the mass per unit volume, usuall y measured in kilograms per cubic meter (kg/m³). The volume of the fluid displaced is equivalent to the volume ofthe object submerged in the fluid. Acceleration due to gravityis a constant value, approximately equal to 9.8 m/s².Based on this formula, we can see that the buoyant force depends on the density and volume of the fluid displaced, aswell as the acceleration due to gravity. The weight of the fluid displaced acts in the opposite direction to the gravitational force acting on the object, reducing its overall weight.Archimedes' principle can explain various phenomena we observe in everyday life. For example, it explains why objects that are denser than water sink while those that are less dense float. When an object is denser than the fluid it is submerged in, the weight of the fluid displaced is less than the weight of the object, and it sinks. On the other hand, if an object isless dense than the fluid, the buoyant force is greater than the weight of the object, causing it to float.This principle also explains why objects feel lighter when submerged in a fluid. The liquid exerts an upward force on the object that partially counteracts the downward force of gravity, making the object feel lighter. This effect can be observed when we lift heavy objects in a swimming pool, where the buoyantforce reduces the apparent weight of the object.Additionally, Archimedes' principle is the principle behind the functioning of various objects, such as boats and submarines. The principle of buoyancy helps these objects stay afloat orcontrol their depth by adjusting the amount of fluid they displace. By increasing or decreasing the volume of the fluid displaced, these objects can alter the upward buoyant force and control their buoyancy.In conclusion, Archimedes' principle provides insight into the relationship between an object immersed in a fluid and the buoyant force it experiences. Understanding this principle not only helps explain various phenomena related to buoyancy but also contributes to the design and operation of objects that rely on buoyancy for their functioning.。

美国经济大萧条全英文

美国经济大萧条全英文

government intervenes to economy Keynesian['keinziən]
national macroeconomic adjust and control economic nationalism—tariffs Totalitarianism(极端主义)-Nazi Party 卍 Adolf Hitler&Benito Mussolini贝尼托·墨索里尼,
This study suggests that theories of the Great Depression have to explain an initial severe decline but rapid recovery in productivity, relatively little change in the capital stock, and a prolonged depression in the labor force.
Recent work from a neoclassical perspective focuses on the decline in productivity that caused the initial decline in output and a prolonged recovery due to policies that affected the labor market.
Demand-driven Keynesian Breakdown of international trade Debt deflation Monetarist New classical approach Austrian School Inequality Productivity shock

关于涂鸦的英语作文

关于涂鸦的英语作文

Graffiti is a form of visual communication that has been around for centuries,but it has gained significant attention in the modern era.It is a complex and multifaceted art form that can be both beautiful and controversial.Here,we will delve into the world of graffiti,exploring its history,its cultural significance,and its impact on society.The Origins of GraffitiGraffiti has a rich history that dates back to ancient civilizations.The earliest known examples can be found in the form of cave paintings and rock carvings.However,the term graffiti is derived from the Italian word for scratched,which is more closely associated with the modern practice of writing or drawing on walls and other surfaces.In the modern context,graffiti emerged in the1960s and1970s,particularly in urban areas of the United States.It was a form of expression for marginalized groups and became a symbol of rebellion against authority and societal norms.Cultural SignificanceGraffiti has deep cultural roots and is often seen as a form of social commentary.It can be a powerful tool for expressing political views,social issues,or personal narratives.For many artists,graffiti is a way to make their voices heard in a society that might otherwise ignore them.In some cultures,graffiti is embraced as a legitimate form of art.Street artists like Banksy have gained international recognition for their thoughtprovoking works that challenge the status quo.However,in other places,graffiti is seen as vandalism and is heavily penalized.The Artistic AspectGraffiti is an art form that requires skill,creativity,and courage.The artists often work under the cover of darkness,using spray paint,markers,or even stencils to create their masterpieces.The designs can range from simple tags to complex murals that cover entire walls.The aesthetic appeal of graffiti is subjective,but its impact on urban landscapes is undeniable.It can transform a dull,grey cityscape into a vibrant canvas of color and movement.However,the transient nature of graffiti means that these works are often shortlived,as they are either painted over or destroyed by the elements.The ControversyThe debate surrounding graffiti is ongoing.While some view it as a form of artistic expression,others see it as a blight on the community.The legal status of graffiti varies widely,with some cities embracing it as a form of public art,while others have strict laws against it.The controversy also extends to the commercialization of graffiti.Some argue that when graffiti is commodified,it loses its original meaning and becomes a tool for corporate marketing.Others believe that the commercialization of graffiti can provide a legitimate income for artists and help to legitimize the art form.ConclusionGraffiti is a complex and fascinating aspect of urban culture.It is a testament to human creativity and a reflection of societal issues.Whether one views it as a form of vandalism or a legitimate art form,it is clear that graffiti has left an indelible mark on the world of art and continues to be a subject of debate and discussion.In conclusion,graffiti is more than just a form of defacement it is a cultural phenomenon that speaks to the heart of urban life.It is a medium through which individuals can express themselves in a public space,often in ways that challenge societal norms and expectations.As society continues to evolve,so too will the role and perception of graffiti within it.。

卡夫卡审判英文介绍

卡夫卡审判英文介绍

卡夫卡审判英文介绍Franz Kafka's "The Trial" is a profound exploration of the absurdities and horrors of bureaucracy and its impact on human life. First published in 1925, the novel tells the story of Josef K., a respectable bank clerk who is arrested one morning for an unspecified crime and thrown into a Kafkaesque world of legal confusion and bureaucratic insanity.The Trial is set in a vaguely defined city, where the law is arbitrary and the court system is a labyrinthine maze of bureaucracy and confusion. Josef K. is arrested without any clear explanation and thrown into a world where the distinction between innocence and guilt is blurred. The court system is not a place of justice but a machine for the perpetuation of power and the exercise of arbitrary authority. Josef K. finds himself caught in a vicious cycle of legal proceedings that lead nowhere, with each proceeding merely serving to justify his continued imprisonment.The novel is a powerful indictment of bureaucracy andits corrosive effect on human life. Kafka captures the numbing effect of bureaucracy on the individual, the way it robs people of their agency and turns them into pawns in a system that cares nothing for their well-being. Josef K. is a victim of this system, a man who is treated as less than human by the authorities and denied any meaningful contact with the outside world. His imprisonment becomes a living hell, a nightmarish existence that slowly destroys his sanity.Kafka's writing style is unique and powerful, employing a mix of dreamlike imagery and nightmarish scenarios to create a sense of disorientation and confusion. The language is often dense and opaque, reflecting the opacity and confusion of the court system and the world it inhabits. The Trial is a difficult book to read, but it is also a profoundly important work that demands to be read and understood.The Trial is not just a critique of bureaucracy,however. It is also a profound exploration of human nature and the way we deal with the absurdities and horrors of the world. Josef K. is a man who tries to make sense of his situation, to find a way to escape the clutches of thecourt system and regain his freedom. He seeks help from various people, from his landlady to his lawyer, but hefinds that everyone is either complicit in the system or powerless to help him. This isolation and helplessness is a profound commentary on the human condition, the way we are often left to fend for ourselves in a world that is often indifferent or hostile to our needs.The Trial is also a profoundly pessimistic work. Kafka saw the world he inhabited as a place of increasing chaos and confusion, and he saw no way out of this situation. The novel ends with Josef K. being taken to his execution, and the reader is left with a sense of hopelessness and despair. This pessimism is part of what makes the novel so powerful, however. It forces us to confront the ugly truth about the world we live in, the way that bureaucracy and power can corrupt and destroy even the best of us.In conclusion, Franz Kafka's "The Trial" is a profound and important work that deserves to be read and studied by all. It is a powerful indictment of bureaucracy and its corrosive effect on human life, and it is also a profound exploration of human nature and the way we deal with the absurdities and horrors of the world. The novel's unique writing style and powerful imagery create a sense of disorientation and confusion that is both disturbing and compelling, and its pessimistic vision of the world is both bleak and profoundly important. "The Trial" is a book that challenges our understanding of the world and forces us to think deeply about the nature of bureaucracy, power, and human life.。

关于阿基米德发现浮力定律的英语作文

关于阿基米德发现浮力定律的英语作文

关于阿基米德发现浮力定律的英语作文Title: Archimedes and the Discovery of the Buoyancy PrincipleIntroduction:One of the most significant discoveries in the field of physics is the buoyancy principle, which was first documented by the ancient Greek mathematician and inventor, Archimedes. This principle, also known as Archimedes' Principle, explains why objects float or sink in a fluid. It has numerous applications in various fields, including engineering, shipbuilding, and submarine design. This essay aims to explore Archimedes' contributions and elaborate on his discovery of the buoyancy principle.The Life and Contributions of Archimedes:Archimedes was born in Syracuse, a Greek colony in Sicily, around 287 BC. He made groundbreaking contributions to mathematics, physics, engineering, and many other fields. His notable works include the invention of the Archimedes' screw, development of hydrostatics, and pioneering studies in the science of levers.The Discovery of Buoyancy Principle:The story behind Archimedes' discovery of the buoyancy principle is widely known. According to historical records, the King of Syracuse ordered a golden crown to be made for himself. However, he had doubts about the purity of the gold and sought Archimedes' assistance to determine whether the crown was made of pure gold or if other metals had been mixed in.Archimedes pondered over this problem for some time but was unable to find a direct solution. It was during one of his visits to the public bathhouse that he observed an interesting phenomenon - the water level rose as he entered the tub. This observation sparked an idea in Archimedes' mind, leading him to the discovery of the buoyancy principle.The Buoyancy Principle Explained:Archimedes realized that the upward force exerted on an object submerged in a fluid is equal to the weight of the fluid displaced by the object. This meant that an object submerged in a fluid experiences an upward buoyant force equal to the weight of the displaced fluid. If this upward force is equal to or greater than the object's weight, it floats. If the weight of the object exceeds the upward force, it sinks.Significance and Applications:Archimedes' discovery of the buoyancy principle had a profound impact on various fields. In shipbuilding, understanding buoyancy is crucial for designing vessels that can stay afloat in water. This principle also plays a vital role in naval architecture and submarine design. Furthermore, engineers rely on the buoyancy principle when designing structures that will be partially or entirely submerged, such as dams and underwater support systems.Conclusion:Archimedes' discovery of the buoyancy principle remains one of his greatest contributions to science and engineering. His remarkable observation and subsequent understanding of this principle have had a lasting impact, revolutionizing several fields. The buoyancy principle is still studied and applied today, demonstrating the enduring significance of Archimedes' work.。

Archimedes and Brewing Effect(酝酿效应)

Archimedes and Brewing Effect(酝酿效应)

Brewing effect
日常生活中,我们常常会对一个难题束手无策,不知从何入手,这时思 维就进入了“酝酿阶段”。直到有一天,当我们抛开面前的问题去做其 他的事情时,百思不得其解的答案却突然出现在我们面前,令我们忍不 住发出类似阿基米德的惊叹,这时,“酝酿效应”就绽开了“思维之 花”,结出了“答案之果”。古代诗词说“山重水复疑无路,柳暗花明 又一村”正是这一心理的写照。
所谓酝酿效应,又称为直觉思维,是指反复探索一个问题 的解决而毫无结果时,把问题暂时搁置几其解的问题往往一下子便找到解决办法。
意大利美学家克罗齐指出:人的知识有两种,一种是直觉的, 一种是逻辑的,前者是“从想像得来的”,后者是“从理智 得来的”。直觉是人脑对于对象中隐含的整体性、次序性、 和谐性的某种迅速而直接的洞察和领悟,它可以引导我们绕 过不可逾越的高山,曲径通幽,达到柳暗花明的境界。
日常生活中,我们常常会对一个难题束手无策,不知从何入 手,这时思维就进入了“酝酿阶段”。直到有一天,当我们 抛开面前的问题去做其他的事情时,百思不得其解的答案却 突然出现在我们面前,令我们忍不住发出类似阿基米德的惊 叹,这时,“酝酿效应”就绽开了“思维之花”,结出了 “答案之果”。古代诗词说“山重水复疑无路,柳暗花明又 一村”正是这一心理的写照。
美国化学家普拉特和贝克等人也都讲述过类似的经历。例如,普拉特和贝克 写道:“摆脱了有关这个问题的一切思绪,快步走到街上,突然,在街上的 一个地方———我至今还能指出这个地方———一个想法仿佛从天而降,来 到脑中,其清晰明确犹如有一个声音在大声喊叫。我决心放下工作,放下有 关工作的一切思想。第二天,我在做一件性质完全不同的事情时,好像电光 一闪,突然在头脑中出现了一个思想,这就是解决的办法,简单到使我奇怪 怎么先前竟然没有想到。”

Archaeologys Search for the Legendary Utopia

Archaeologys Search for the Legendary Utopia

Archaeologys Search for the LegendaryUtopiaThe search for the legendary utopia has captured the imagination of archaeologists and adventurers for centuries. The idea of a perfect, idyllic society hidden somewhere in the depths of history has fueled countless expeditions and quests. But what exactly is this utopia, and why do so many people believe it exists? The concept of utopia, a place of ideal perfection and harmony, has beena recurring theme in literature and philosophy. From Plato's Republic to Thomas More's Utopia, the idea of a society free from conflict and suffering has long captivated the human imagination. But is there any truth to the existence of sucha place in the real world? Archaeologists have long been intrigued by the possibility of discovering evidence of a real-life utopia. Some believe that ancient civilizations may have achieved a level of social and technological advancement that could be considered utopian by the standards of their time.Others are more skeptical, arguing that the concept of utopia is purely a product of human imagination and has no basis in reality. Despite the skepticism, the search for the legendary utopia continues to inspire explorers and researchers. Countless expeditions have been launched in search of fabled lands such as Atlantis, Shangri-La, and El Dorado. While many of these quests have ended in disappointment, the allure of discovering a lost utopia remains as strong as ever. One of the most famous utopian legends is that of Atlantis, the mythical island civilization described by the ancient Greek philosopher Plato. According to Plato, Atlantis was a powerful and advanced society that eventually sank into the oceanin a single day and night. While the story of Atlantis is widely regarded as a myth, some researchers have speculated that it may have been based on a real historical event, such as the eruption of the volcano Thera in the Aegean Sea. Another legendary utopia is Shangri-La, a mythical Himalayan paradise described in James Hilton's novel "Lost Horizon." The idea of a hidden valley where people live in peace and harmony has captured the popular imagination, leading to numerous expeditions in search of the real Shangri-La. While no conclusive evidence of the existence of Shangri-La has been found, the search for this utopian paradisecontinues to attract adventurers and dreamers. The legend of El Dorado, a fabled city of gold in the New World, has also inspired countless explorers and treasure hunters. Many expeditions have been launched in search of this mythical city, leading to the exploration of vast swathes of the Amazon rainforest and other remote regions of South America. While no evidence of a literal city of gold has been found, the search for El Dorado has led to important archaeological discoveries and the expansion of our knowledge of ancient civilizations in the Americas. In conclusion, the search for the legendary utopia continues to captivate the human imagination and inspire countless expeditions and quests. While the existence of a real-life utopia remains unproven, the allure of discovering a society free from conflict and suffering continues to drive explorers and researchers to seek out lost and mythical lands. Whether the search for utopia will ultimately lead to concrete evidence of a perfect society or remain a purely symbolic quest, the pursuit of this ideal serves as a powerful reminder of humanity's enduring desire for a better world.。

马斯奈沉思曲英语

马斯奈沉思曲英语

马斯奈沉思曲英语The world we live in today is a complex and ever-evolving place. As we navigate the challenges and opportunities that come our way, it is important to reflect on the values and principles that guide our actions. One fundamental principle that I believe should be at the forefront of our minds is the concept of purpose.Purpose is the driving force behind our lives. It is the reason we get up in the morning, the motivation that propels us forward, and the anchor that keeps us grounded. Without a sense of purpose, we can easily become adrift, lost in the sea of distractions and temptations that constantly bombard us.Finding one's purpose is not always an easy task. It requires introspection, self-reflection, and a willingness to confront the deeper questions of our existence. What are we here to do What is our contribution to the world What legacy do we want to leave behind These are the types of questions that can help us uncover our purpose.For some, purpose may be found in their career or profession. They may feel a deep sense of fulfillment in using their skills and talents tomake a positive impact on the lives of others. Others may find their purpose in family, community, or service to a greater cause. Whatever form it takes, purpose is the foundation upon which we build our lives.One of the most inspiring examples of purpose-driven living is that of Dr. Martin Luther King Jr. Throughout his life, Dr. King was guided by a deep sense of purpose – to fight for racial equality and social justice. He recognized that his role was not just to advocate for change, but to inspire others to join the movement and become agents of transformation.Dr. King's famous "I Have a Dream" speech is a testament to the power of purpose. In it, he articulated a vision of a more just and equitable society, one in which people would be judged not by the color of their skin, but by the content of their character. His words resonated with millions around the world, igniting a movement that would ultimately lead to significant progress in the civil rights struggle.Another inspiring example of purpose-driven living is that of Mahatma Gandhi. Gandhi's life was dedicated to the pursuit of nonviolent resistance and the liberation of the Indian people from British colonial rule. Through his unwavering commitment to the principles of truth and nonviolence, Gandhi inspired millions to jointhe independence movement and ultimately achieve their goal of self-governance.Gandhi's legacy is not just one of political triumph, but of the transformative power of purpose. He recognized that true change could only come from within, through a deep commitment to one's values and a willingness to make personal sacrifices for the greater good. His example continues to inspire people around the world to stand up for their beliefs and fight for a more just and equitable world.In our own lives, the pursuit of purpose can take many forms. It may be the decision to volunteer at a local shelter, to start a small business that addresses a pressing social need, or to dedicate our careers to scientific research that could lead to groundbreaking discoveries. Whatever form it takes, the pursuit of purpose is a deeply personal and rewarding journey.As we navigate the challenges and uncertainties of the modern world, it is more important than ever to cultivate a sense of purpose. In a world that is often dominated by materialism and individualism, the pursuit of purpose can be a powerful antidote, reminding us of the deeper meaning and significance of our lives.Through the pursuit of purpose, we can not only find greaterfulfillment and satisfaction in our own lives, but also make a meaningful contribution to the world around us. By aligning our actions with our values and committing ourselves to a greater cause, we can become agents of positive change, inspiring others to follow in our footsteps and create a better future for all.In conclusion, the pursuit of purpose is a fundamental aspect of the human experience. It is the driving force behind our lives, the anchor that keeps us grounded, and the inspiration that propels us forward. By embracing the power of purpose, we can not only find greater meaning and fulfillment in our own lives, but also make a lasting impact on the world around us.。

智利巨人像英语作文

智利巨人像英语作文

智利巨人像英语作文Mysterious Giants of the Chilean AndesThe Andes Mountains, stretching along the western coast of South America, are home to some of the most awe-inspiring and enigmatic natural wonders on the planet. Among these is the curious phenomenon of the giant human-like figures carved into the rugged slopes of the Atacama Desert in northern Chile. Known as the Moai, these colossal stone statues have captivated the imaginations of explorers and scholars for centuries, sparking countless theories and debates about their origins, purpose, and the civilization that created them.The Moai stand as silent sentinels on the remote volcanic island of Rapa Nui, more commonly referred to as Easter Island. Isolated in the vast expanse of the Pacific Ocean, this small speck of land has long been shrouded in mystery, its monumental statues defying easy explanation. The Moai range in height from a few feet to over 30 feet tall, each one carved from a single piece of rock and meticulously crafted to depict a human-like figure with elongated ears, prominent brow ridges, and an enigmatic expression.The sheer scale and technical prowess required to create these colossal works of art are truly astounding. Weighing as much as 80 tons, the Moai were quarried from volcanic rock, transported across the island, and then painstakingly carved and erected using only the most rudimentary of tools and technologies. The feat of engineering and human labor involved in this process has left researchers and archaeologists baffled, as the resources and manpower required seem to far exceed what one might expect from a small, isolated island population.Adding to the mystery is the fact that the Moai were not merely static sculptures but were designed to be erected atop massive stone platforms, known as ahu, which were often located in strategic positions along the island's coastline. This suggests that the Moai were not merely decorative or symbolic in nature but may have served a practical purpose, perhaps as guardians or protectors of the island and its inhabitants.The origins of the Moai and the civilization that created them have been the subject of intense scholarly debate for centuries. The indigenous Rapa Nui people, who inhabited the island for centuries before the arrival of European explorers, have long maintained that the Moai were created by their ancestors, known as the Rapa Nui, as a means of honoring their lineage and connecting with their ancestral spirits.However, the sheer scale and complexity of the Moai have led some researchers to question whether the Rapa Nui alone were capable of such a monumental undertaking. Some have proposed that the Moai may have been created by a more advanced civilization, perhaps one that had contact with or influence from other cultures in the region, such as the Inca or Polynesian societies.Despite the ongoing debates and theories, the Moai continue to captivate and inspire people around the world. The site of Rano Raraku, the volcanic quarry where the Moai were carved, is a UNESCO World Heritage Site and a testament to the ingenuity and perseverance of the people who created these enigmatic giants. Visitors to the island are often struck by the sense of awe and wonder that emanates from these colossal figures, their enigmatic expressions and towering presence evoking a deep connection to the mysteries of the past.As we continue to explore and study the Moai, we are drawn ever deeper into the rich tapestry of human history and the remarkable achievements of our ancestors. The Moai stand as a testament to the resilience, creativity, and ingenuity of the human spirit, reminding us that even in the most remote and inhospitable corners of the world, our ancestors were able to create works of art and engineering that still inspire and captivate us today.。

哲学闭合原则的英语

哲学闭合原则的英语

哲学闭合原则的英语The concept of philosophical closure principle is fascinating. It's about how we tend to wrap up our thoughts and beliefs in neat packages, closing them off from further questioning or examination.You know, sometimes it's like we're building a wall around our ideas, thinking they're so solid and perfectthat no outside influence could possibly change them. But that's where the danger lies.Philosophical closure can be a double-edged sword. On one hand, it gives us stability and certainty. We know what we believe and why we believe it. But on the other hand, it can prevent us from growing and evolving as thinkers.It's like when you're in a relationship and you start to close off from new experiences or perspectives because you're so comfortable with the way things are. You might miss out on something amazing because you're too busyprotecting your own little bubble.In philosophy, it's important to remain open to new ideas and arguments, even if they challenge your deeply held beliefs. After all, that's how we grow and learn as thinkers. Otherwise, we're just stuck in our own little closed-off world.So yeah, the philosophical closure principle is something to think about. It's not necessarily bad, but it's definitely something to be mindful of as we navigate the world of ideas and beliefs.。

英语诗歌:二者的辐合(“泰坦尼克号”失事所感)

英语诗歌:二者的辐合(“泰坦尼克号”失事所感)

英语诗歌:二者的辐合(“泰坦尼克号”失事所感)Convergence of the Twain (Lines on the loss of the Titanic) 二者的辐合(“泰坦尼克号”失事所感)Thomas Hardy 作者:托马斯?哈代翻译:梁实秋IIn a solitude of the sea在大海的寂寥中Deep from human vanity,深离人类的虚荣And the Pride of Life that planned her, stilly couches she.和建造她的那份骄傲,她长眠不醒IISteel chambers, late the pyres钢铁打成的房间Of her salamandrine fires,像火烧过的柴堆一般Cold currents thrid, and turn to rhythmic tidal lyres.冷潮像弹琴似的在其中穿打IIIOver the mirrors meant豪华的明镜To glass the opulent原是为绅商照映The sea-worm crawls——grotesque,slimed,dumb,indifferent.如今虫豸在上面爬——粘湿丑陋,蠢蠢欲动Jewels in joy designed玲珑剔透的珠宝To ravish the sensuous mind原是为供人夸耀Lie lightless, all their sparkles bleared and black and blind.如今黯然失色的在那里睡觉VDim moon-eyed fishes near张着大眼的鱼Gaze at the gilded gear对着这些晶莹灿烂的东西And query: "What does this vaingloriousness down here?". . .问道:“这狂妄之物在这里做什么呢?”VIWell: while was fashioning在制造这飞鸟一般的This creature of cleaving wing,庞大的怪物之际The Immanent Will that stirs and urges everything搅动一切之旋转宇宙的动力VIIPrepared a sinister mate也为她制造了不祥的伙伴For her——so gaily great————好伟大好壮观——A Shape of Ice, for the time fat and dissociate目前远在天边的一座大冰山And as the smart ship grew他们彼此不相干In stature, grace, and hue谁也不能看穿In shadowy silent distance grew the Iceberg too.他们以后会融合成为一团IXAlien they seemed to be:No mortal eye could seeThe intimate welding of their later history.XOr sign that they were bent或是有任何迹象By paths coincident他们会走到一条线上On being anon twin halves of one August event,不久成为一件惨案的双方XITill the Spinner of the Years直到宇宙的主宰Said "Now!" And each one hears,说一声“现在!”And consummation comes, and jars two hemispheres.于是大功告成,两个撞在一块背景知识:托马斯·哈代,英国诗人、小说家。

有关考古得英文作文

有关考古得英文作文

有关考古得英文作文英文:Archaeology is a fascinating field that allows us to uncover the mysteries of the past. As an archaeologist, I have had the opportunity to explore ancient sites and discover artifacts that shed light on the way people lived in the past. One of the most exciting aspects of archaeology is the thrill of discovery. Every time we dig, we never know what we might find. It could be a small piece of pottery or a hidden tomb filled with treasures.Another interesting aspect of archaeology is the way it allows us to piece together the puzzle of history. By examining the artifacts we find, we can learn about the technology, art, and culture of ancient civilizations. For example, when I was working on a dig in Egypt, we found a small statue of a pharaoh. By studying the style and materials used, we were able to date it to a specific time period and learn more about the political and socialclimate of that era.However, archaeology is not without its challenges. One of the biggest challenges is preserving the sites we uncover. It is important to protect these sites fromlooters and damage caused by natural elements. Additionally, we must be careful not to damage the artifacts we find in the excavation process. It takes a lot of skill andpatience to carefully extract artifacts from the ground without damaging them.Overall, archaeology is a rewarding and exciting field that allows us to learn about our past and preserve it for future generations.中文:考古学是一个迷人的领域,它让我们揭开过去的神秘面纱。

胡夫金字塔英语作文

胡夫金字塔英语作文

胡夫金字塔英语作文The Giza Pyramids: A Timeless Wonder of the Ancient WorldThe Giza Pyramids, located on the outskirts of Cairo, Egypt, are a testament to the ingenuity and engineering prowess of the ancient Egyptians. These colossal structures, built over 4,500 years ago, have captivated the imagination of people around the world for centuries. The largest and most famous of the three Giza Pyramids is the Great Pyramid, also known as the Pyramid of Khufu or Cheops. This magnificent monument, standing at an impressive height of 481 feet (146 meters), is the oldest and largest of the three Giza Pyramids and is the only remaining Wonder of the Ancient World.The construction of the Great Pyramid is a true marvel of engineering. It is estimated that the pyramid was built using over 2.3 million stone blocks, each weighing an average of 2.5 tons. The precise placement and alignment of these blocks, with an accuracy that is unparalleled in ancient construction, is a testament to the advanced mathematical and architectural knowledge of the ancient Egyptians. The pyramid's sides are aligned with the four cardinal directions, and the structure's base covers an area of over 13 acres (5.3 hectares).The purpose of the Great Pyramid has been the subject of much debate and speculation over the centuries. It is widely accepted that the pyramid served as the final resting place for the pharaoh Khufu, also known as Cheops, who reigned during the Fourth Dynasty of the Old Kingdom. The pyramid was designed to be the pharaoh's grand tomb, a place where he could be buried with all the riches and provisions he would need for the afterlife.The interior of the Great Pyramid is a complex network of chambers and passageways that were meticulously constructed to protect the pharaoh's remains and treasures. The main burial chamber, located deep within the pyramid, is known as the King's Chamber. This chamber is made of highly polished granite and contains a large, rectangular sarcophagus that was intended to hold the pharaoh's body. The walls of the chamber are adorned with intricate hieroglyphic inscriptions and carvings, providing a glimpse into the beliefs and rituals of ancient Egyptian culture.In addition to the King's Chamber, the Great Pyramid also contains several other chambers and passageways, including the Queen's Chamber, the Grand Gallery, and the Ascending and Descending Passages. These various chambers and passages were designed to serve specific purposes, such as housing the pharaoh's treasures, providing access to the burial chamber, and facilitating the ritualsand ceremonies associated with the pharaoh's burial.The construction of the Great Pyramid was a massive undertaking that required the coordination of thousands of workers and the mobilization of vast resources. Scholars have long debated the methods and techniques used by the ancient Egyptians to construct these colossal structures, with theories ranging from the use of primitive tools and manpower to the employment of advanced engineering techniques and even the involvement of extraterrestrial beings.Despite the many theories and speculations surrounding the construction of the Great Pyramid, one thing is certain: the sheer scale and precision of this monument are a testament to the ingenuity and technological prowess of the ancient Egyptians. The fact that the Great Pyramid has stood the test of time, withstanding the ravages of weather, natural disasters, and human interference, is a testament to the skill and dedication of its builders.Today, the Giza Pyramids continue to captivate and inspire people from around the world. Millions of visitors flock to the site each year, eager to witness the grandeur and mystery of these ancient wonders. The Giza Pyramids have become an iconic symbol of Egypt, representing the country's rich cultural heritage and the enduring legacy of its ancient civilization.In conclusion, the Giza Pyramids, and the Great Pyramid in particular, are a true marvel of the ancient world. These colossal structures, built with precision and engineering prowess, continue to captivate and inspire people across the globe. The Giza Pyramids stand as a testament to the ingenuity and technological prowess of the ancient Egyptians, and they will undoubtedly continue to capture the imagination of people for generations to come.。

普希金青铜骑士序诗英文原版

普希金青铜骑士序诗英文原版

普希金青铜骑士序诗英文原版以下是普希金的《青铜骑士》序诗的英文翻译:The Bronze Horseman.I still recall the wondrous moment,。

When you appeared before my sight,。

Like phantom, fleeting, like a fable,。

Like crystal, pure, and like a sprite.In depths of sorrow and dejection,。

I used to languish, pine and moan.It seemed to me that in affection,。

Alone I could be saved alone.You came a vision, you departed,。

Another's wife, and not my own.A flame still burns within my heart,。

And to my grave will not be gone.I see you in my dreams and visions,。

I hear your voice, your sweet caress,。

And I must bear this life's affliction,。

An endless torment, no redress.I loved you; though it brought me anguish,。

Though it consumed my heart and soul,。

And to this day I still must languish,。

And bear the burden of my role.And now, the years have flown like swallows,。

鲍桑葵 美学史英文

鲍桑葵 美学史英文

鲍桑葵美学史英文The Aesthetic History of the Bauhinia FlowerThe Bauhinia flower, also known as the orchid tree or the Hong Kong orchid, is a captivating and culturally significant botanical wonder that has captivated the hearts and minds of artists, scholars, and admirers across the globe. This enchanting flower, with its distinctive twin-lobed petals and delicate, ethereal appearance, has long been celebrated for its exquisite beauty and its deep-rooted symbolism within various cultural traditions.The Bauhinia flower's journey through the annals of art and aesthetics is a testament to its enduring allure and the profound impact it has had on the human experience. From its ancient roots in the Eastern philosophies and artistic traditions to its more recent embrace by the Western world, the Bauhinia flower has continually inspired and challenged our perceptions of beauty, nature, and the very essence of the human condition.One of the most striking aspects of the Bauhinia flower's aesthetic history is its profound connection to the Chinese cultural and artistic landscape. In traditional Chinese art, the Bauhinia has long beenrevered as a symbol of harmony, duality, and the delicate balance between opposing forces. The flower's twin-lobed petals, which often appear to be mirror images of one another, have been interpreted as a representation of the yin and yang, the fundamental principle of complementary opposites that underpins much of Chinese philosophy and cosmology.This symbolic resonance has manifested in a rich tapestry of artistic expressions, from the delicate brush strokes of traditional Chinese painting to the intricate designs of ceramics, textiles, and architectural ornamentation. The Bauhinia's graceful, sweeping silhouette has been a source of inspiration for calligraphers, poets, and musicians, who have sought to capture the flower's essence through the medium of their respective art forms.Moreover, the Bauhinia's aesthetic significance has extended beyond the confines of China, as the flower has been embraced by various cultures across Asia and the world. In Hong Kong, for instance, the Bauhinia has become a national symbol, adorning the region's flag and serving as a unifying emblem of its rich cultural heritage. The flower's popularity has also spread to other parts of the world, where it has been cultivated and celebrated for its breathtaking beauty and its ability to evoke a sense of tranquility and contemplation.One of the most remarkable aspects of the Bauhinia flower'saesthetic history is its ability to transcend cultural boundaries and speak to the universal human experience. The flower's delicate, ethereal appearance has been interpreted as a metaphor for the transience of life, the fragility of existence, and the pursuit of spiritual enlightenment. In this sense, the Bauhinia flower has become a symbol of the human condition, a tangible representation of the fleeting nature of beauty and the enduring power of the natural world to inspire and captivate us.Furthermore, the Bauhinia's aesthetic history has been deeply intertwined with the evolution of artistic and cultural movements throughout the centuries. From the ancient Chinese scholars and artists who incorporated the flower into their works to the modern-day designers and architects who have drawn inspiration from its elegant form, the Bauhinia has been a constant presence in the creative landscape, adapting and evolving to suit the changing tastes and perspectives of each era.In the realm of contemporary art, the Bauhinia flower has continued to captivate and inspire artists from diverse backgrounds and disciplines. Painters, sculptors, and installation artists have all sought to capture the flower's ethereal beauty and its deeper symbolic resonance, using a wide range of media and techniques to explore the complexities of the human experience and our relationship with the natural world.One particularly striking example of the Bauhinia flower's contemporary artistic relevance can be found in the work of the renowned Chinese artist Ai Weiwei. In his 2017 exhibition "Ai Weiwei: Roots," the artist incorporated the Bauhinia flower into a series of large-scale sculptures and installations, using the flower's distinctive silhouette as a means of exploring themes of identity, displacement, and the universal human experience.Through his work, Ai Weiwei sought to challenge the traditional interpretations of the Bauhinia flower, recontextualizing its symbolic meaning and inviting viewers to engage with the flower's aesthetic and conceptual complexities in new and innovative ways. By doing so, he has not only contributed to the ongoing evolution of the Bauhinia's aesthetic history but has also underscored the flower's enduring relevance and its ability to inspire and captivate audiences across the globe.In conclusion, the aesthetic history of the Bauhinia flower is a rich and multifaceted tapestry that spans centuries and continents, reflecting the deep and abiding human fascination with the natural world and its capacity to inspire and transform our creative and intellectual pursuits. From its ancient roots in the Eastern philosophies to its more recent embrace by the Western art world, the Bauhinia flower has continually challenged and expanded ourunderstanding of beauty, symbolism, and the human experience, cementing its place as one of the most captivating and enduring floral icons in the annals of art and culture.。

庞贝末日观后感英语作文

庞贝末日观后感英语作文

庞贝末日观后感英语作文The haunting echoes of Pompeii's tragic end resonated deeply with me after watching "Pompeii's Last Day," a documentary that transported me back to the fateful day in 79 AD when the eruption of Mount Vesuvius forever changed the course of history. The film's vivid reenactments and expert narration painted a picture so vivid that I felt the ash and cinders on my skin, the panic in the air, and the sheerterror that must have gripped the inhabitants of this once-thriving city.What struck me most was the raw human experience encapsulated in the documentary. It wasn't just the story of a city's destruction; it was a testament to the resilience and vulnerability of human life. The faces of the plaster casts, preserved in their final moments, told a thousand stories of love, fear, and the struggle for survival. It was a stark reminder of how, in the face of nature's wrath, we are all equal.The documentary also shed light on the meticulous archaeological efforts to uncover the secrets of Pompeii. The dedication of the researchers to piece together the lives of those who perished was nothing short of inspiring. It was a poignant reminder of the importance of preserving our past to understand our present and shape our future."Pompeii's Last Day" was not just a historical account;it was a profound reflection on the fragility of life and the indomitable spirit of humanity. It left me with a renewed appreciation for the present and a deep respect for the power of nature and the resilience of the human spirit.。

Archaeologys Search for a Legendary Emperor

Archaeologys Search for a Legendary Emperor

Archaeologys Search for a LegendaryEmperorArchaeology has always been a fascinating field of study, as it seeks to uncover the mysteries of our past. One of the most intriguing quests that archaeologists have embarked upon is the search for a legendary emperor. This emperor is said to have ruled over a vast empire, but little is known about him. The search for this emperor has captured the imagination of people for centuries, and has led to numerous expeditions and excavations. In this essay, I will explore the various perspectives on this quest, and the challenges faced by archaeologists in their search for this elusive ruler. From a historical perspective, the search for this legendary emperor is important because it could shed light on an era that has been shrouded in mystery. The emperor is said to have ruled over a vast empire, but there are few records of his reign. His name is not even known for certain,and he is referred to by different names in different cultures. If archaeologists could find evidence of his existence, it could help us understand the political, social, and economic conditions of his time. It could also reveal the extent ofhis empire, and the cultural and religious practices of his people. From acultural perspective, the search for this legendary emperor is important becauseit is a part of our collective history. The stories of his reign have been passed down through generations, and have become a part of our folklore. The emperor is often portrayed as a wise and just ruler, who brought peace and prosperity to his people. His legacy has inspired many works of literature and art, and has become a symbol of power and authority. The search for this emperor is not just about uncovering the truth of our past, but also about preserving our cultural heritage. From a scientific perspective, the search for this legendary emperor is important because it challenges our understanding of history. The lack of records about his reign has led some scholars to doubt his existence. However, the stories about him are too widespread and consistent to be dismissed as mere legend. Ifarchaeologists could find evidence of his existence, it could help us understand how historical facts become distorted over time, and how myths and legends are created. It could also help us develop new techniques for studying the past, andimprove our understanding of human civilization. Despite the importance of this quest, archaeologists face many challenges in their search for the legendary emperor. One of the biggest challenges is the lack of concrete evidence. The stories about the emperor are often vague and contradictory, and there are no written records of his reign. Archaeologists have to rely on oral traditions, legends, and artifacts to piece together the story of his empire. This makes it difficult to separate fact from fiction, and to verify the authenticity of the artifacts. Another challenge is the sheer size of the empire. The emperor is said to have ruled over a vast territory, spanning multiple countries and regions. This makes it difficult to know where to begin the search. Archaeologists have to rely on clues from the stories and legends to narrow down the search area. They also have to deal with political and cultural barriers, as different countries have different laws and regulations regarding archaeological excavations. A third challenge is the danger involved in the search. Some of the areas where the emperor is said to have ruled are remote and inhospitable, with harsh weather conditions and rugged terrain. Archaeologists have to be physically fit and mentally prepared to endure the hardships of the expedition. They also have to deal with the risk of encountering hostile locals, armed conflicts, and natural disasters. Despite these challenges, archaeologists continue to search for the legendary emperor. They use a variety of techniques, including remote sensing, ground-penetrating radar, and satellite imagery. They also collaborate with local communities and governments to gain access to the search areas. Some of the recent discoveries, such as the tomb of the First Emperor of China, have given hope to archaeologists that the legendary emperor may one day be found. In conclusion, the search for the legendary emperor is a fascinating and important quest that has captured the imagination of people for centuries. From a historical, cultural, and scientific perspective, it has the potential to reveal important insights into our past and our understanding of human civilization. However, archaeologists face many challenges in their search, including the lack of concrete evidence, the vastness of the empire, and the danger involved in the expedition. Despite these challenges, they continue to search for the emperor, driven by their passion for uncovering the mysteries of our past.。

毅力战风浪的英语作文

毅力战风浪的英语作文

Perseverance is a quality that can be likened to a ship braving the stormy seas.It is the unwavering determination to continue in the face of adversity,the relentless pursuit of a goal despite the obstacles that may come in the way.Just as a ship must navigate through the tumultuous waves,individuals with perseverance must steer their lives through the challenges that life presents.In the vast ocean of life,there are times when the winds of misfortune blow fiercely,and the waves of hardship crash against the hull of our resolve.It is during these moments that the strength of ones perseverance is truly tested.Those who possess this virtue do not allow the tempest to sweep them off course.Instead,they tighten the sails of their willpower and chart a course through the storm.The story of Sir Ernest Shackleton and his illfated Antarctic expedition is a testament to the power of perseverance.Faced with the crushing ice that trapped and ultimately sank his ship,the Endurance,Shackleton could have succumbed to despair.However,his indomitable spirit led him and his crew to survive the harsh Antarctic winter,and he ultimately organized a daring rescue mission that saved every member of his team.Perseverance is not just about surviving the storms of life it is also about thriving in them. It is the ability to learn from the challenges we face,to grow stronger with each wave that we ride.It is about transforming the energy of adversity into the fuel that propels us forward.In our personal lives,perseverance can manifest in various ways.It could be the student who,despite failing multiple times,continues to study and eventually achieves academic success.It could be the entrepreneur who,after numerous business failures,finally finds the formula for success.It could be the artist who,through countless rejections,continues to create and one day sees their work celebrated.Perseverance requires patience,for the storms of life do not always pass quickly.It demands resilience,for the waves of hardship can be relentless.But most importantly,it calls for an unwavering belief in oneself and ones ability to overcome.In conclusion,perseverance is the compass that guides us through the tempest of life.It is the anchor that keeps us grounded when the winds of doubt and fear howl around us.It is the lighthouse that illuminates our path when we are surrounded by the darkness of despair.Embrace perseverance,and no matter the storm,you will find your way to the shores of success.。

凝视深渊英文缩写

凝视深渊英文缩写

凝视深渊英文缩写The abbreviation "NGA" stands for "Narcissistic Grandiosity Assessment," a psychological tool used to measure narcissistic traits in individuals. Narcissism, a personality disorder characterized by a grandiose sense of self-importance, a need for excessive admiration, and a lack of empathy, has become a topic of significant interest in recent years.The NGA assessment aims to provide a comprehensive evaluation of an individual's level of narcissism. It consists of a series of questions designed to assess various dimensions of narcissistic personality traits. These dimensions include grandiosity, entitlement, exploitativeness, lack of empathy, and a need for admiration.The assessment begins with questions that explore an individual's sense of self-importance and grandiosity. Participants are asked to rate statements such as, "I am more important than others," or "I deserve special treatment." These questions help to identify individuals who have an inflated sense of their own abilities and achievements.Next, the NGA assessment examines an individual's entitlement and exploitativeness. Participants are asked to rate statements like, "I believe that I deserve special privileges," or "I often exploit others to achieve my goals." These questions help to identify individuals who feel entitled to special treatment and are willing to manipulate others to get what they want.The assessment also explores an individual's lack of empathy. Participants are asked to rate statements like, "I have difficulty understanding other people's feelings," or "Idon't really care about other people's problems." These questions aim to identify individuals who lack the ability to understand and share the feelings of others, a common characteristic of narcissistic individuals.Finally, the NGA assessment examines an individual's need for admiration. Participants are asked to rate statements like, "I need to be admired by others," or "I enjoybeing the center of attention." These questions help to identify individuals who have an excessive need for attention and admiration from others.Once the assessment is complete, the scores are analyzed to determine the level of narcissism in an individual. Scores are compared to a standardized scale to provide an objective measure of narcissistic traits. The results can help clinicians and researchers better understand an individual's personality and develop appropriate treatment plans if necessary.It is important to note that the NGA assessment is just one tool in a comprehensive evaluation of narcissistic traits. It should be used in conjunction with other diagnostic criteria and clinical judgment to make an accurate diagnosis. Additionally, it is essential to remember that narcissism exists on a spectrum, and not all individuals who score high on the NGA assessment will have a diagnosable personality disorder.In conclusion, the NGA abbreviation represents the Narcissistic Grandiosity Assessment, a psychological tool used to measure narcissistic traits in individuals. This assessment evaluates various dimensions of narcissism, including grandiosity, entitlement, exploitativeness, lack of empathy, and a need for admiration. By providing an objective measure of narcissistic traits, the NGA assessment aids in the understanding and treatment of individuals with narcissistic personality traits.。

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The Archimedean Assumption in Fuzzy Set TheoryTaner Bilgic¸Department of Industrial EngineeringUniversity of TorontoToronto,Ontario,M5S1A4Canadataner@ie.utoronto.caAbstractThe Archimedean axiom in fuzzy set theory is critically discussed.The axiom is brought into perspective within a measurement theoretic framework and then its validity for fuzzy set theory is questioned.The discussion sheds light into what type of vagueness fuzzy set theory models.1IntroductionIt is one of the basic tenets of fuzzy set theory to take into account the continuous degrees of membership.In that way, fuzzy set theory is distinguished from other many-valued logics.Continuous membership functions and continuous Ar-chimedean triangular norms and conorms together with a negation operator describe an algebraic structure that de-fines fuzzy set theory.We have investigated the semantic issues that such an al-gebraic structure raises elsewhere[1,4,2,3]from a mea-surement point of view.In this paper,we concentrate on the Archimedean axiom and discuss its relevance to fuzzy set theory.In particular we are trying to answer the following questions:1.Is the Archimedean axiom relevant for fuzzy set the-ory?2.What does one gain or loose when one adopts the Ar-chimedean axiom?Once again we do this in the framework provided by mea-surement theory.First,we investigate the use of the Ar-chimedean axiom in other contexts—particularly subjective probability theory and utility theory—and then investigate the implications of the Archimedean axiom in fuzzy set the-ory.Figure1shows how measurement theory works:the qualitative structure corresponds to a conceptual schema Appeared in Proceedings of NAFIPS’96June19-22,1996,University of California,Berkeley.and the numerical structure is the corresponding representa-tion.Notice that the representation is“two-way”,i.e.,what-ever happens in the qualitative structure must be mirrored in the numerical structure and vice versa.Numerical Structure Qualitative Structurea seta relationan operationFigure1.Representation in Measurement TheoryWe emphasize that it is this reverse implication which makes Archimedean axiom a problem.Archimedean axiom is a property of the numerical structure that has to be re-flected on the qualitative structure.We are going to argue that this is not always possible.At least since Goguen[7]we know that membership functions can be represented on weaker structures than the unit interval.All that is required is that the structure be a Heyting algebra.However,fuzzy set theorists continue to use the unit interval,probably for its ease in conveying the graded membership concept to non-specialists using the fa-miliar real numbers.We are investigating the consequences of that assumption.2Archimedean axiom in generalThe Archimedean axiom has been given that name since it corresponds to the Archimedean property of real numbers [9]:for any positive number no matter how small and an-other positive number no matter how large,there exists a positive integer such that.This implies that two real numbers are comparable and their ratio is not infinite. Another way to state this axiom is:for any real numbers and,the set of integers is afinite set.In algebraic structures,Archimedean axioms are ex-pressed in many forms.But the idea is always to represent this(nice)property of real numbers.However,Archime-dean axiom is only necessary when we want a mapping from the algebraic structure into real numbers(a real representa-tion).If one does not require“the comfort”of real numbers at the outset,Archimedean axiom is not necessary.From a practical point of view,it is very hard,if not impossible,to test for empirical meaningfulness of the Archimedean ax-iom in fuzzy sets.We give some insights as to why testing for empirical meaningfulness is important.Note that,in afinite structure,Archimedean axiom triv-ially holds and therefore it is not necessary for the real repre-sentation.Furthermore,the Archimedean axiom cannot be expressed in an elementary language[10].In an elementary formal language,the Archimedean axiom can be stated as statement with countably infinite disjunctions:where is an abbreviation for thefirst order state-ment that concatenations of with itself exceeds.2.1ProbabilityIn the axiomatization of qualitative probability[9,5],Ar-chimedean axiom together with the necessary conditions on the qualitative structure is not sufficient to come up with a unique representation for probability measures(see[9,Sec-tion5.2.1]for example).Therefore,usually another strong axiom,namely the existence of afine partition to model pure randomness as the uniform distribution,is postulated.Once this is done,which endows the structure with afine grain structure that is akin to real numbers,then the Archimedean axiom is accepted on normative grounds(because it exists in the representation of the continuum as we know it!).2.2UtilityIn utility theory,Archimedean axiom arises in two man-ners.In the“naive”utility theory(or value theory)it has the structure exactly like the one we are going use in fuzzy set theory.If an object is valued higher than another object, there exists afinite such that is valued at least as high as.Archimedean axiom is rejected in value theory[12] because some items are infinitely more valuable than others for agents(like life,well-being,etc.).That is why,value the-ory prescribes,at most,an interval scale on which subjective values can be measured.In(expected)utility theory with lotteries and subjective probabilities[6],Archimedean axiom,once again,states the same principle:no consequence is infinitely desirable than another.Savage[13]realizes the non-necessary nature of the Archimedean axiom but cannot dismiss it since without it he cannot come up with a ratio scale representation.3Archimedean axiom in Fuzzy Set Theory In order to qualify the claim that the concept of gradedmembership is an intuitive and valid representation of fuzzi-ness,we undertake this task within the framework providedby measurement theory[9,12,11,15,10].In such a theoryone can discuss the representation of a qualitative structure by a numerical structure and the meaningfulness of such arepresentation.The problem of meaningfulness can be sum-marized as:“Numerical statements are meaningful insofaras they can be translated,using the mapping conventions,into statements about the original qualitative structure.”[8].In view of measurement theory,we investigate the under-lying qualitative structure of fuzzy set theory which turnsout to be a well studied mathematical concept:an orderedalgebraic structure.This view is in accord with the claimthat algebra is a suitable tool to analyze logic,which may bedisputed.In[1,2],the conditions imposed on the qualitative struc-ture are laid out and critically discussed as to their suitabilityto the cognition of fuzziness.We take fuzzy propositions to be of the form:Mary is more intelligent than John is funny where“intelligent”and“funny”are the fuzzy terms.This can be formalized in an ordered algebraic structure inthe following manner:consider a countable set of agent-adjective pairs,and a binary re-lation,on with the following interpretation:belongs to at least as much asbelongs toWe briefly summarize basic definitions and the main rep-resentation results for ordered algebraic structures.Definition1The algebraic structure where is anonempty set and is a binary operation on is called asemigroup if and only if is associative(i.e.,for all ,).If there exists such that for all,the structure,is calleda semigroup with identity or a monoid.Finally,is a group if and only if it is a semigroup with identity andany element of has an inverse:for all,there exists such that.When the algebraic structure is also endowed with an or-dering,,we obtain ordered algebraic structures.Definition2Let be an empty set,a binary relation on and a binary operation on.is an ordered structure if and only if the following axioms are satisfied:(weak ordering)is connected and transitive,(monotonicity)for all,andimply.The asymmetric part()and the symmetric complement ()of any relation are defined as usual:if and only if and not and if and only if and .Adding more properties to an ordered algebraic structure results in specializations of the concept.In this paper,we only consider ordered semigroups(where the concatenation is associative).These are summarized in the following def-inition:Definition3Let be an ordered algebraic structure such that is a semigroup.Then is called an ordered semigroup.Furthermore,it is said to be:Weakly Associative(WA). Solvable(Sv)iff whenever then there exists such that.Strongly Monotonic(SM)iff whenever thenthen.Homogeneous(H)iff whenever if and only ifif and only if.Idempotent(Ip)iff for all,.Bounded(B)iff there exist and in such that:for all ,,and.Archimedean(Ar)iff for any there exists a positive integer such that where is recursively defined as,. Continuous iff is continuous as a function of two vari-ables,using the order topology on its range and the rel-ative product topology on its domain.By a representation of an ordered algebraic structure,we mean a real valued function that maps the ordered alge-braic structure,to a numerical structure, ,where is a subset of,is the natural ordering of real numbers and is a function.Since we focus on ordered semigroups,in the resulting representation, is necessarily associative.The boundary condition,asserts the existence of a mini-mal and a maximal element in set.Hence,given the weak ordering and the boundaries,one can replace the set by the familiar interval notationThe following lemma demonstrates some of the conse-quences of axioms imposed on a bounded ordered semi-group[14].Lemma1Let be a bounded ordered semi-group with bounds and.Then also satisfies the follow-ing conditions for all:(i)sup,(ii),(iii).In[14,Section5.3]a function defined on a closed real in-terval,endowed with the natural ordering,,is con-sidered.Here,a more abstract structure is considered but their results carry over to our setting without modification since our relation,,is transitive and connected and hence is an equivalence.Representation theorems with varying uniqueness char-acteristics can be given for ordered semigroups.These are summarized in the following:Theorem1The algebraic structure is:(i)a bounded ordered semigroup if and only if there ex-ists such that,,,,andwhere is a closed subset of and is an associative,monotonic function such thatwhich has as its identity.Furthermore,is another representation if and only if there exists a strictly increasing functionwith and and such that for all,(ordinal scale). (ii)a bounded idempotent semigroup if and only if all the conditions in(i)are satisfied and.(iii)a continuous Archimedean bounded ordered semi-group if and only if the conditions of(i)are satisfied with,and there exists a strictly increasing continuous function,with,such that for all,,where is the pseudo-inverse of given by:.Fur-thermore,is unique up to a positive constant(ratio scale).(iv)a solvable homogeneous Archimedean strongly mono-tonic ordered semigroup if and only if it is isomorphic to a sub semigroup of.Moreover,two such isomorphisms are unique up to a positive constant(ra-tio scale).(v)a solvable Archimedean strongly monotonic ordered semigroup if and only if it is isomorphic to a sub semi-group,wherefor all and two such isomorphisms are necessarily equivalent(absolute scale).Figure 2shows the interdependence of measurement ax-ioms,the corresponding scales,and summarizes Theorem1.Quantitative StructureAlgebraic representationFigure 2.Summary of representations:is a t-conorm,is the Łukasiewicz co-norm that models disjunction.In this formal framework,we discuss the Archimedean axiom.Note that,when one uses continuous,Archimedean triangular norms and conorms as intersection and union in fuzzy set theory,one implicitly commits to the Archimedean axiom.From Figure 2,one can deduce two things about the role of the Archimedean axiom:if you endow the structure with more structure (Homo-geneity and Solvability in this case),then the Archime-dean axiom is implicitly implied.without it you cannot have ratio or absolute scale rep-resentations.But what does the latter exactly mean?In terms of the above example,the Archimedean axiom in fuzzy set theory implies that there exists a finite amount of the quality of being fun,which when attributed to John will make John funnier than Mary is intelligent.We do not allow for two concepts to be infinitesimally different from each other on the basis of their membership to a fuzzy set.Or in other words,if there is a standard sequence with which we measure the concept of graded membership,and if it is strictly bounded then it is finite.It seems that we are in the same boat with value theorists:in order to accept the Archimedean axion we should allow all membership functions to be comparable and we should not allow two membership functions to be infinitesimally different from each other.This seems to be acceptable forconcepts with linear,continuous universe of discourses like tallness,temperature,etc.However,with multi-dimensional domains (like comfort,humidity,etc.)and some concepts the Archimedean axiom cannot be so easily entertained.4SummaryThe summary of the discussion is as follows:If one commits to any one of the continuous Archime-dean t-norms and t-conorms,one also implicitly com-mits to the Archimedean axiom.It is extremely hard to empirically verify the Archime-dean axiom in fuzzy set theory.However,in many other contexts,the Archimedean ax-iom is usually accepted for its normative appeal rather than its empirical validity.Although this is true for nor-mative theories,if fuzzy set theory is to be applied at all,we believe that its basic axioms need to be validated either empirically or by thought experiments.Archi-medean axiom seems to lack both type of validations for fuzzy set theory.Without the Archimedean axiom,one cannot attain ra-tio or absolute scale representations.The resulting rep-resentations are ordinal in which two truth values can only be compared to each other.The functions min and max stand distinctively non-Archimedean.However,their idempotency seems to be a trouble for interactive fuzzy sets.One way to dispense with the problematic Archime-dean axiom is to consider representations into the field extensions of real numbers (hyper reals).Another way is,of course,to assume that the system is finite.References[1]T.Bilgic ¸.Measurement-Theoretic Frameworksfor Fuzzy SetTheory with Applications to PreferenceModelling .PhD the-sis,University of Toronto,Dept.of Industrial Engineering Toronto Ontario M5S 1A4Canada,1995.[2]T.Bilgic ¸and I.T¨u rks ¸en.Measurement-theoretic justificationof fuzzy set connectives.Fuzzy Sets and Systems ,76(3):289–308,December 1995.[3]T.Bilgic ¸and I.B.T¨u rks ¸en.Measurement of membershipfunctions:Theoretical and experimentalwork.To appear in the Handbook of Fuzzy Systems,1995.[4]T.Bilgic ¸and I.B.T¨u rks ¸en.Measurement-theoretic frame-works for fuzzy set theory.In Working notes of the IJCAI-95workshop on “Fuzzy Logic in Artificial Intelligence”,pages 55–65,August 19,211995.14th International Joint Confer-ence on Artificial Intelligence Montr´e al,Canada.[5]T.L.Fine.Theoriesof Probability:An Examination of Foun-dations.Academic Press,New York,1973.[6]P.C.Fishburn.Utility theory for decision making.Oper-ations Research Society of America.Publications in opera-tions research,no.18.Wiley,New York,1970.[7]J.Goguen.L-fuzzy sets.Journal of mathematical analysisand applications,18:145–174,1967.[8] D.H.Krantz.From indices to mappings:The representa-tional approach to measurement.In D.R.Brown and J.E.K.Smith,editors,Frontiers of Mathematical Psychology:Es-says in Honor of Clyde Coombs,Recent Research in Psy-chology,chapter1.Springer–Verlag,Berlin,Germany,1991.[9] D.H.Krantz,R.D.Luce,P.Suppes,and ersky.Foun-dations of Measurement,volume1.Academic Press,San Diego,1971.[10]R.Luce,D.Krantz,P.Suppes,and ersky.Founda-tions of Masurement,volume3.Academic Press,San Diego, USA,1990.[11]L.Narens.Abstract Measurement Theory.MIT Press,Cam-bridge,Mass.,1986.[12] F.Roberts.Measurement Theory.Addison Wesley Pub.Co.,1979.[13]L.J.Savage.The foundations of statistics.Dover Publica-tions,New York,2edition,1972.[14] B.Schweizer and A.Sklar.Probabilistic Metric Spaces.North-Holland,Amsterdam,1983.[15]P.Suppes,D.Krantz,R.Luce,and ersky.Foundationsof Measurement,volume2.Academic Press,San Diego, 1989.。

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