Zeno's Paradoxes
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Zeno of Elea: Where Space, Time, Physics, and Philosophy Converge
Western Kentucky University TopSCHOLAR® Honors College Capstone Experience/Thesis Honors College at WKU Projects Fall 2007 Zeno of Elea: Where Space, Time, Physics, and Philosophy Converge An Everyman’s Introduction to an Unsung Hero of Philosophy William Turner Western Kentucky University Follow this and additional works at: http://digitalcommons.wku.edu/stu_hon_theses Part of the Other Philosophy Commons, Other Physics Commons, and the Philosophy of Science Commons Recommended Citation Turner, William, "Zeno of Elea: Where Space, Time, Physics, and Philosophy Converge An Everyman’s Introduction to an Unsung Hero of Philosophy" (2007). Honors College Capstone Experience/Thesis Projects. Paper 111. http://digitalcommons.wku.edu/stu_hon_theses/111 This Thesis is brought to you for free and open access by TopSCHOLAR®. It has been accepted for inclusion in Honors College Capstone Experience/ Thesis Projects by an authorized administrator of TopSCHOLAR®. For more information, please contact [email protected]. P │ S─Z─T │ P Zeno of Elea: Where Space, Time, Physics, and Philosophy Converge An Everyman’s Introduction to an Unsung Hero of Philosophy Will Turner Western Kentucky University Abstract Zeno of Elea, despite being among the most important of the Pre-Socratic philosophers, is frequently overlooked by philosophers and scientists alike in modern times. Zeno of Elea’s arguments on have not only been an impetus for the most important scientific and mathematical theories in human history, his arguments still serve as a basis for modern problems and theoretical speculations. This is a study of his arguments on motion, the purpose they have served in the history of science, and modern applications of Zeno of Elea’s arguments on motion. -
Diogenes Laertius, Vitae Philosophorum, Book Five
Binghamton University The Open Repository @ Binghamton (The ORB) The Society for Ancient Greek Philosophy Newsletter 12-1986 The Lives of the Peripatetics: Diogenes Laertius, Vitae Philosophorum, Book Five Michael Sollenberger Mount St. Mary's University, [email protected] Follow this and additional works at: https://orb.binghamton.edu/sagp Part of the Ancient History, Greek and Roman through Late Antiquity Commons, Ancient Philosophy Commons, and the History of Philosophy Commons Recommended Citation Sollenberger, Michael, "The Lives of the Peripatetics: Diogenes Laertius, Vitae Philosophorum, Book Five" (1986). The Society for Ancient Greek Philosophy Newsletter. 129. https://orb.binghamton.edu/sagp/129 This Article is brought to you for free and open access by The Open Repository @ Binghamton (The ORB). It has been accepted for inclusion in The Society for Ancient Greek Philosophy Newsletter by an authorized administrator of The Open Repository @ Binghamton (The ORB). For more information, please contact [email protected]. f\îc|*zx,e| lîâ& The Lives of the Peripatetics: Diogenes Laertius, Vitae Philosoohorum Book Five The biographies of six early Peripatetic philosophers are con tained in the fifth book of Diogenes Laertius* Vitae philosoohorum: the lives of the first four heads of the sect - Aristotle, Theophras tus, Strato, and Lyco - and those of two outstanding members of the school - Demetrius of Phalerum and Heraclides of Pontus, For the history of two rival schools, the Academy and the Stoa, we are for tunate in having not only Diogenes' versions in 3ooks Four and Seven, but also the Index Academicorum and the Index Stoicorum preserved among the papyri from Herculaneum, But for the Peripatos there-is no such second source. -
Nonstandard Methods in Analysis an Elementary Approach to Stochastic Differential Equations
Nonstandard Methods in Analysis An elementary approach to Stochastic Differential Equations Vieri Benci Dipartimento di Matematica Applicata June 2008 Vieri Benci (DMA-Pisa) Nonstandard Methods 03/06 1 / 42 In most applications of NSA to analysis, only elementary tools and techniques of nonstandard calculus seems to be necessary. The advantages of a theory which includes infinitasimals rely more on the possibility of making new models rather than in the dimostration techniques. These two points will be illustrated using a-theory in the study of Brownian motion. The aim of this talk is to make two points relative to NSA: Vieri Benci (DMA-Pisa) Nonstandard Methods 03/06 2 / 42 The advantages of a theory which includes infinitasimals rely more on the possibility of making new models rather than in the dimostration techniques. These two points will be illustrated using a-theory in the study of Brownian motion. The aim of this talk is to make two points relative to NSA: In most applications of NSA to analysis, only elementary tools and techniques of nonstandard calculus seems to be necessary. Vieri Benci (DMA-Pisa) Nonstandard Methods 03/06 2 / 42 These two points will be illustrated using a-theory in the study of Brownian motion. The aim of this talk is to make two points relative to NSA: In most applications of NSA to analysis, only elementary tools and techniques of nonstandard calculus seems to be necessary. The advantages of a theory which includes infinitasimals rely more on the possibility of making new models rather than in the dimostration techniques. Vieri Benci (DMA-Pisa) Nonstandard Methods 03/06 2 / 42 The aim of this talk is to make two points relative to NSA: In most applications of NSA to analysis, only elementary tools and techniques of nonstandard calculus seems to be necessary. -
An Introduction to Nonstandard Analysis 11
AN INTRODUCTION TO NONSTANDARD ANALYSIS ISAAC DAVIS Abstract. In this paper we give an introduction to nonstandard analysis, starting with an ultrapower construction of the hyperreals. We then demon- strate how theorems in standard analysis \transfer over" to nonstandard anal- ysis, and how theorems in standard analysis can be proven using theorems in nonstandard analysis. 1. Introduction For many centuries, early mathematicians and physicists would solve problems by considering infinitesimally small pieces of a shape, or movement along a path by an infinitesimal amount. Archimedes derived the formula for the area of a circle by thinking of a circle as a polygon with infinitely many infinitesimal sides [1]. In particular, the construction of calculus was first motivated by this intuitive notion of infinitesimal change. G.W. Leibniz's derivation of calculus made extensive use of “infinitesimal” numbers, which were both nonzero but small enough to add to any real number without changing it noticeably. Although intuitively clear, infinitesi- mals were ultimately rejected as mathematically unsound, and were replaced with the common -δ method of computing limits and derivatives. However, in 1960 Abraham Robinson developed nonstandard analysis, in which the reals are rigor- ously extended to include infinitesimal numbers and infinite numbers; this new extended field is called the field of hyperreal numbers. The goal was to create a system of analysis that was more intuitively appealing than standard analysis but without losing any of the rigor of standard analysis. In this paper, we will explore the construction and various uses of nonstandard analysis. In section 2 we will introduce the notion of an ultrafilter, which will allow us to do a typical ultrapower construction of the hyperreal numbers. -
Intransitivity and Future Generations: Debunking Parfit's Mere Addition Paradox
Journal of Applied Philosophy, Vol. 20, No. 2,Intransitivity 2003 and Future Generations 187 Intransitivity and Future Generations: Debunking Parfit’s Mere Addition Paradox KAI M. A. CHAN Duties to future persons contribute critically to many important contemporaneous ethical dilemmas, such as environmental protection, contraception, abortion, and population policy. Yet this area of ethics is mired in paradoxes. It appeared that any principle for dealing with future persons encountered Kavka’s paradox of future individuals, Parfit’s repugnant conclusion, or an indefensible asymmetry. In 1976, Singer proposed a utilitarian solution that seemed to avoid the above trio of obstacles, but Parfit so successfully demonstrated the unacceptability of this position that Singer abandoned it. Indeed, the apparently intransitivity of Singer’s solution contributed to Temkin’s argument that the notion of “all things considered better than” may be intransitive. In this paper, I demonstrate that a time-extended view of Singer’s solution avoids the intransitivity that allows Parfit’s mere addition paradox to lead to the repugnant conclusion. However, the heart of the mere addition paradox remains: the time-extended view still yields intransitive judgments. I discuss a general theory for dealing with intransitivity (Tran- sitivity by Transformation) that was inspired by Temkin’s sports analogy, and demonstrate that such a solution is more palatable than Temkin suspected. When a pair-wise comparison also requires consideration of a small number of relevant external alternatives, we can avoid intransitivity and the mere addition paradox without infinite comparisons or rejecting the Independence of Irrelevant Alternatives Principle. Disagreement regarding the nature and substance of our duties to future persons is widespread. -
THE PHILOSOPHY BOOK George Santayana (1863-1952)
Georg Hegel (1770-1831) ................................ 30 Arthur Schopenhauer (1788-1860) ................. 32 Ludwig Andreas Feuerbach (1804-1872) ...... 32 John Stuart Mill (1806-1873) .......................... 33 Soren Kierkegaard (1813-1855) ..................... 33 Karl Marx (1818-1883).................................... 34 Henry David Thoreau (1817-1862) ................ 35 Charles Sanders Peirce (1839-1914).............. 35 William James (1842-1910) ............................ 36 The Modern World 1900-1950 ............................. 36 Friedrich Nietzsche (1844-1900) .................... 37 Ahad Ha'am (1856-1927) ............................... 38 Ferdinand de Saussure (1857-1913) ............. 38 Edmund Husserl (1859–1938) ....................... 39 Henri Bergson (1859-1941) ............................ 39 Contents John Dewey (1859–1952) ............................... 39 Introduction....................................................... 1 THE PHILOSOPHY BOOK George Santayana (1863-1952) ..................... 40 The Ancient World 700 BCE-250 CE..................... 3 Miguel de Unamuno (1864-1936) ................... 40 Introduction Thales of Miletus (c.624-546 BCE)................... 3 William Du Bois (1868-1963) .......................... 41 Laozi (c.6th century BCE) ................................. 4 Philosophy is not just the preserve of brilliant Bertrand Russell (1872-1970) ........................ 41 Pythagoras (c.570-495 BCE) ............................ 4 but eccentric thinkers that it is popularly Max Scheler -
A Set of Solutions to Parfit's Problems
NOÛS 35:2 ~2001! 214–238 A Set of Solutions to Parfit’s Problems Stuart Rachels University of Alabama In Part Four of Reasons and Persons Derek Parfit searches for “Theory X,” a satisfactory account of well-being.1 Theories of well-being cover the utilitarian part of ethics but don’t claim to cover everything. They say nothing, for exam- ple, about rights or justice. Most of the theories Parfit considers remain neutral on what well-being consists in; his ingenious problems concern form rather than content. In the end, Parfit cannot find a theory that solves each of his problems. In this essay I propose a theory of well-being that may provide viable solu- tions. This theory is hedonic—couched in terms of pleasure—but solutions of the same form are available even if hedonic welfare is but one aspect of well-being. In Section 1, I lay out the “Quasi-Maximizing Theory” of hedonic well-being. I motivate the least intuitive part of the theory in Section 2. Then I consider Jes- per Ryberg’s objection to a similar theory. In Sections 4–6 I show how the theory purports to solve Parfit’s problems. If my arguments succeed, then the Quasi- Maximizing Theory is one of the few viable candidates for Theory X. 1. The Quasi-Maximizing Theory The Quasi-Maximizing Theory incorporates four principles. 1. The Conflation Principle: One state of affairs is hedonically better than an- other if and only if one person’s having all the experiences in the first would be hedonically better than one person’s having all the experiences in the second.2 The Conflation Principle sanctions translating multiperson comparisons into single person comparisons. -
Seminar in Greek Philosophy Pyrrhonian Scepticism 1
PHILOSOPHY 210: SEMINAR IN GREEK PHILOSOPHY 1 PYRRHONIAN SCEPTICISM Monte Johnson [email protected] UCSD Fall 2014 Course Description Pyrrhonian scepticism, as represented in the works of Sextus Empiricus, presents both a culmination and critique of the whole achievement of Greek philosophy, and was a major influence on the renaissance and the scientific revolutions of the seventeenth century, and continues to influence contemporary epistemology. In this seminar, we will get a general overview of Pyrrhonian scepticism beginning with the doxographies in Book IX of Diogenes Laertius, Lives of the Famous Philosophers (including Heraclitus, Xenophanes, Parmenides, Zeno of Elea, Leucippus, Democritus, Protagoras, Diogenes of Apollonia, Anaxarchus, Pyrrho, and Timon). The core part of the course will consist of a close reading and discussion of the three books of the Outlines of Pyrhhonian Scepticism by Sextus Empiricus, along with a more detailed examination of the treatment of logic, physics, and ethics in his Against the Dogmatists VII-XI. The last three weeks of the seminar will be devoted to student presentations relating Pyrrhonian scepticism to their own interests in philosophy (whether topical or historical). Goals • Learn techniques of interpreting and criticizing works of ancient philosophy in translation, including fragmentary works. • Obtain an overview of ancient scepticism, especially Pyrrhonian scepticism, its textual basis, predecessors, and influence upon later philosophy and science. • Conduct original research relating ancient skepticism to your own philosophical interests; compile an annotated bibliography and craft a substantial research paper. • Develop skills in discussing and presenting philosophical ideas and research, including producing handouts, leading discussions, and fielding questions. Evaluation 10% Participation and discussion. -
Zeno of Elea Born Around 489 BC This Zeno, As Opposed to Zeno Of
Zeno of Elea Born around 489 BC This Zeno, as opposed to Zeno of Citium, is perhaps most famous for his paradoxes. These strange scenarios are designed to make the think about mathematics and physics in new and different ways. Zeno was opposed to many of the ideas of Pythagoras, supported many of the ideas of Parmenides. His paradoxes have been reconstructed in slightly different ways by modern scientists from his cryptic and fragmentary writings. • Let us suppose that reality is made up of units. These units are either with magnitude or without magnitude. If the former, then a line for example, as made up of units possessed of magnitude, will be infinitely divisible, since, however far you divide, the units will still have magnitude and so be divisible. But in this case, the line will be made up of an infinite number of units, each of which is possessed of magnitude. The line, then, must be infinitely great, as composed of an infinite number of bodies. Everything in the world, then, must be infinitely great, and a forteriori the world itself must be infinitely great. Suppose, on the other hand, that the units are without magnitude. In this case, the whole universe will also be without magnitude, since, however many units you add together, if none of them has any magnitude, then the whole collection of them will also be without magnitude. But if the universe is without any magnitude, it must be infinitely small. Indeed, everything in the universe must be infinitely small. Either everything in the universe is infinitely great, or everything in the universe is infinitely small. -
Unexpected Hanging Paradox - Wikip… Unexpected Hanging Paradox from Wikipedia, the Free Encyclopedia
2-12-2010 Unexpected hanging paradox - Wikip… Unexpected hanging paradox From Wikipedia, the free encyclopedia The unexpected hanging paradox, hangman paradox, unexpected exam paradox, surprise test paradox or prediction paradox is a paradox about a person's expectations about the timing of a future event (e.g. a prisoner's hanging, or a school test) which he is told will occur at an unexpected time. Despite significant academic interest, no consensus on its correct resolution has yet been established.[1] One approach, offered by the logical school of thought, suggests that the problem arises in a self-contradictory self- referencing statement at the heart of the judge's sentence. Another approach, offered by the epistemological school of thought, suggests the unexpected hanging paradox is an example of an epistemic paradox because it turns on our concept of knowledge.[2] Even though it is apparently simple, the paradox's underlying complexities have even led to it being called a "significant problem" for philosophy.[3] Contents 1 Description of the paradox 2 The logical school 2.1 Objections 2.2 Leaky inductive argument 2.3 Additivity of surprise 3 The epistemological school 4 See also 5 References 6 External links Description of the paradox The paradox has been described as follows:[4] A judge tells a condemned prisoner that he will be hanged at noon on one weekday in the following week but that the execution will be a surprise to the prisoner. He will not know the day of the hanging until the executioner knocks on his cell door at noon that day. -
Russell's Paradox in Appendix B of the Principles of Mathematics
HISTORY AND PHILOSOPHY OF LOGIC, 22 (2001), 13± 28 Russell’s Paradox in Appendix B of the Principles of Mathematics: Was Frege’s response adequate? Ke v i n C. Kl e m e n t Department of Philosophy, University of Massachusetts, Amherst, MA 01003, USA Received March 2000 In their correspondence in 1902 and 1903, after discussing the Russell paradox, Russell and Frege discussed the paradox of propositions considered informally in Appendix B of Russell’s Principles of Mathematics. It seems that the proposition, p, stating the logical product of the class w, namely, the class of all propositions stating the logical product of a class they are not in, is in w if and only if it is not. Frege believed that this paradox was avoided within his philosophy due to his distinction between sense (Sinn) and reference (Bedeutung). However, I show that while the paradox as Russell formulates it is ill-formed with Frege’s extant logical system, if Frege’s system is expanded to contain the commitments of his philosophy of language, an analogue of this paradox is formulable. This and other concerns in Fregean intensional logic are discussed, and it is discovered that Frege’s logical system, even without its naive class theory embodied in its infamous Basic Law V, leads to inconsistencies when the theory of sense and reference is axiomatized therein. 1. Introduction Russell’s letter to Frege from June of 1902 in which he related his discovery of the Russell paradox was a monumental event in the history of logic. However, in the ensuing correspondence between Russell and Frege, the Russell paradox was not the only antinomy discussed. -
Lecture 5. Zeno's Four Paradoxes of Motion
Lecture 5. Zeno's Four Paradoxes of Motion Science of infinity In Lecture 4, we mentioned that a conflict arose from the discovery of irrationals. The Greeks' rejection of irrational numbers was essentially part of a general rejection of the infinite process. In fact, until the late 19th century most mathematicians were reluctant to accept infinity. In his last observations on mathematics1, Hermann Weyl wrote: \Mathematics has been called the science of the infinite. Indeed, the mathematician invents finite constructions by which questions are decided that by their very nature refer to the infinite. That is his glory." Besides the conflict of irrational numbers, there were other conflicts about the infinite process, namely, Zeno's famous paradoxes of motion from around 450 B.C. Figure 5.1 Zeno of Citium Zeno's Paradoxes of motion Zeno (490 B.C. - 430 B.C.) was a Greek philosopher of southern Italy and a member of the Eleatic School founded by Parmenides2. We know little 1Axiomatic versus constructive procedures in mathematics, The Mathematical Intelligencer 7 (4) (1985), 10-17. 2Parmenides of Elea, early 5th century B.C., was an ancient Greek philosopher born in Elea, a Greek city on the southern coast of Italy. He was the founder of the Eleatic school of philosophy. For his picture, see Figure 2.3. 32 about Zeno other than Plato's assertion that he went to Athens to meet with Socrates when he was nearly 40 years old. Zeno was a Pythegorean. By a legend, he was killed by a tyrant of Elea whom he had plotted to depose.