In this work, I consider Aristotle's theory of universals in the Organon. I argue that, according to Aristotle, demonstrative knowledge presupposes the existence of real universals, and I defend a mereological interpretation of Aristotelian real universals. ;The work is divided into three parts. First, I demonstrate that Aristotle's theory of demonstrative knowledge presupposes the existence of universals and argue that the ontological status of universals cannot be determined from Aristotle's explications of his concept of a universal. (...) Second, I reconstruct Aristotle's semantics for universal affirmative premises and demonstrate that, according to Aristotle, every true universal affirmative premise involves a universal term that primarily signifies a universal concept and secondarily signifies either a real essence or a real genus. Third, I argue that real essences and genera are real universals and that real universals are wholes, each of the parts of which is a real particular. ;In chapter 1, I reconstruct two arguments from the Posterior Analytics that reveal important connections between Aristotle's theory of demonstrative knowledge, his philosophy of language, and his ontology in the Organon. In chapter 2, I argue that the ontological status of universals is underdetermined by the various explications of the concept of a universal $\lbrack\tau\`o\ \kappa\alpha\theta\'o\lambda o\upsilon\rbrack$ presented by Aristotle in the Organon. In chapter 3, the syntax of simple statements as presented in De Interpretatione is investigated. In chapter 4, I argue the semantic scheme for simple statements presented by Aristotle in De Interpretatione in conjunction with his excursus on concept acquisition in APst. B 19 provide the semantic grounds for the syntactic distinctions among simple statements. I establish the extensional features of Aristotle's semantics in chapter 5. In chapter 6, I present my interpretation of Aristotelian real universals, focusing solely on primary and secondary substances. I argue that, according to Aristotle, there are real universals that are wholes having for parts the essences or the parts of the essences of primary substances. (shrink)

This collection of new essays by an international group of scholars closely examine the works of Aristotle's Organon. The Organon is the general title given to the collection of Aristotle's logical works: Categories, De Interpretatione, Prior Analytics, Posterior Analytics, Topics and Sophistical Refutations. This extremely influential collection gave Aristotle the reputation of being the founder of logic, and has helped shaped the development of logic for over two millennia. The chapters in this volume cover topics pertaining (...) to each of the six works traditionally included in the Organon as well as its manuscript tradition. In addition, a comprehensive introduction by the editors discusses Aristotle and logic, the composition and order of the Organon, and the authenticity, title, and chronology of the treatises that make up these works New Essays on Aristotle's Organon offers a valuable insight into this collection for students and scholars working on Aristotle, the works of the Organon, or the philosophy of logic more broadly. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Semantics in Aristotle’s OrganonMark WheelerVarious contemporary commentators have made conflicting claims about Aristotle’s theory of meaning. Some have claimed that he has a denotational theory of meaning, others that he has an ideational theory of meaning, and yet others that he has confused the denotational and ideational aspects of meaning.1 Recently, Kretzmann and Irwin have presented arguments which, taken together, imply that Aristotle has no theory of meaning.2I think (...) that all of these views are mistaken. Aristotle, I shall argue, is working with a rather sophisticated and coherent theory of meaning incorporating both denotational and ideational components. In section 1, I reconstruct the general theory of linguistic signification presented in De Interpretatione [End Page 191] 16a3–9, a passage which has been the cornerstone of both ancient and contemporary interpretations of Aristotle’s theory of meaning. I develop an interpretation different in important respects from both the standard view and recent alternatives. Aristotle’s general theory emerges as a remarkably flexible account of the relations among linguistic signs, mental images, and real things.3 In section 2, I recast Aristotle’s general theory in contemporary semantic terminology and respond to various arguments purporting to show that Aristotle hasn’t a theory of meaning as these are now understood.1. ARISTOTLE’S GENERAL THEORY OF LINGUISTIC SIGNIFICATIONIn the present section, I develop an interpretation of Aristotle’s explicit, albeit terse, sketch at De Interpretatione 16a3–9 of the fundamental semiotic relations among written marks, spoken sounds, affections of the soul, and things in the world. In so doing, I consider and reject an argument according to which the passage either doesn’t present a general theory of linguistic signification or, if it does, the theory presented is fatally flawed.4 The results of this section are very general but important enough to warrant isolated attention. I argue that, given Int. 16a3–9, Aristotle is committed to the following claims: (1) Written marks are signs of spoken sounds; (2) spoken sounds are, by their very nature, signs of mental images; (3) spoken sounds are, by convention, signs of mental images; (4) the mental images signified by spoken sounds are, by their very nature, signs of real perceptible or intelligible qualities; and (5) the mental images signified by spoken sounds are, by their very nature, signs of real things.5 [End Page 192]Our passage has been the subject of extensive study. Kretzmann has called it “the most influential text in the history of semantics” (3). It is worth quoting in full:Now spoken sounds [ϕωναί] are symbols [σύμβολα] of affections in the soul [ἐν τῇ Ψυχῇ παθημάτων], and written marks [γϱαϕὀμενα] symbols of spoken sounds. And just as written marks [γϱάμματα] are not the same [τά αὐτά] for all men, neither are spoken sounds. But what these are in the first place [πϱώτων] signs [σημει̑α] of—affections of the soul [παθἡματα τῆς Ψυχῆς]—are the same for all; and what these affections are likenesses [ὁμοιώματα] of—real things [πϱάγματα]—are also the same. These matters have been discussed in the work on the soul and do not belong to the present subject.6Traditionally, the passage is taken to present a sketch of Aristotle’s general theory of meaning.7 Standard interpretations run roughly as follows. First, Aristotle lays down three general semantic principles: Written marks signify spoken sounds; spoken sounds signify affections in the soul; and affections in the soul represent things in the world. These principles establish the basic semiotic relations among language, thought, and reality. Second, Aristotle implies (cf. Int. 16a6) that spoken sounds signify in the first place affections in the soul and that, by means of this primary significance, spoken sounds signify in the second place real things.8 I shall call this the ‘Semantic Primacy Thesis. ‘ Third, the affections in the soul with which Aristotle is concerned are thoughts [νοἠματα], and he refers us to book III, chapters 7–8 of the De Anima for further discussion of the nature of these. Lastly, Aristotle is developing a strictly conventionalist theory of linguistic meaning, according to which although all human beings have access to the same affections in the soul and the same real things, different written and spoken languages are used by different communities to signify... (shrink)

Aristotle’s Categories and Concerning Interpretation, translated and with commentary.

Aristotle's Modal Logic, first published in 1995, presents an interpretation of Aristotle's logic by arguing that a proper understanding of the system depends on an appreciation of its connection to the metaphysics. Richard Patterson develops three striking theses in the book. First, there is a fundamental connection between Aristotle's logic of possibility and necessity, and his metaphysics, and that this connection extends far beyond the widely recognised tie to scientific demonstration and relates to the more basic distinction (...) between the essential and accidental properties of a subject. Second, Aristotle's views on modal logic depend in very significant ways on his metaphysics without entailing any sacrifice in rigour. Third, once one has grasped the nature of the relationship, one can understand better certain genuine difficulties in the system of logic and appreciate its strengths in terms of the purposes for which it was created. (shrink)

Critique de la possibilité d'individus non-substantiels récurrents que G. E. L. Owen repère dans l'«Organon» d'Aristote. Soulevant le problème ontologique de l'un et du multiple, des entités particulières et des entités universelles chez Aristote, l'A. montre qu'un individu unique en nombre ne peut se reproduire périodiquement et que le statut modal des individus récurrents contredit la définition du sujet présent dans les «Catégories» . Conformément aux conditions de la ressemblance établies par Aristote dans les «Topiques», l'A. conclut à l'impossibilité (...) d'individus substantiels ou non-substantiels universels. (shrink)

Edited by Richard McKeon, with an introduction by C.D.C. Reeve Preserved by Arabic mathematicians and canonized by Christian scholars, Aristotle’s works have shaped Western thought, science, and religion for nearly two thousand years. Richard McKeon’s The Basic Works of Aristotle—constituted out of the definitive Oxford translation and in print as a Random House hardcover for sixty years—has long been considered the best available one-volume Aristotle. Appearing in paperback at long last, this edition includes selections from the Organon, On the (...) Heavens, The Short Physical Treatises, Rhetoric, among others, and On the Soul, On Generation and Corruption, Physics, Metaphysics, Nicomachean Ethics, Politics, and Poetics in their entirety. (shrink)

Quite a number of contemporary students of logic tend to consider Aristotle's logic mainly from a formal point of view. Richard Patterson, on the other hand, attempts to show that Aristotle's system of logic as well as his modal logic must be studied in the light of his fundamental theory of syntax and his metaphysics. Even if all of Aristotle's modal logic has not been accepted in the West, the ideas underpinning it are those of his syllogistic (...) logic. Patterson observes that, in his modal logic, Aristotle uses modal copulae rather than modal predicates. (shrink)

Aristotle's metaphysics has stimulated intense renewed debate in the past twenty years. Much of the discussion has focused on Metaphysics Z, Aristotle's fascinating and difficult investigation of substance , and to a lesser extent on H and Θ. The place of the central books within the larger project of First Philosophy in the Metaphysics has engaged scholars since antiquity, and that relationship has also been reexamined. In addition, scholars have been exploring the Metaphysics from various broader perspectives—first, in (...) relation to Aristotle's natural philosophy, his physics, biology, and psychology, and to the Organon, his so-called "logical" works, which include the Categories, Topics, and Posterior Analytics; and second, in relation to the broader philosophical tradition, both Plato before him and the ancient commentary tradition in late antiquity. (shrink)

I provide a survey of the contents of the works belonging to Aristotle's Organon in order to define their nature, in the light of his declared intentions and of other indications (mainly internal ones) about his purposes. No unifying conception of logic can be found in them, such as the traditional one, suggested by the very title Organon, of logic as a methodology of demonstration. Logic for him can also be formal logic (represented in the main by (...) the De Interpretatione), axiomatized syllogistic (represented in the main by the Prior Analytics) and a methodology of dialectical and rhetorical discussion. The consequent lack of unity presented by those works does not exclude that both the set of works called Analytics and the set of works concerning dialectic (Topics and Sophistici Elenchi) form a unity, and that a certain priority is attributed to the analytics with respect to dialectic. (shrink)

: Aristotle's metaphysics has stimulated intense renewed debate in the past twenty years. Much of the discussion has focused on Metaphysics Z, Aristotle's fascinating and difficult investigation of substance (ousia), and to a lesser extent on H and Θ. The place of the central books within the larger project of First Philosophy in the Metaphysics has engaged scholars since antiquity, and that relationship has also been reexamined. In addition, scholars have been exploring the Metaphysics from various broader perspectives—first, (...) in relation to Aristotle's natural philosophy, his physics, biology, and psychology, and to the Organon, his so-called "logical" works, which include the Categories, Topics, and Posterior Analytics; and second, in relation to the broader philosophical tradition, both Plato before him and the ancient commentary tradition in late antiquity. (shrink)

This book presents a (new) attempt to apply the notion of an underlying logic to Aristotle’s Organon and certain passages of the Metaphysics. The author situates his approach as part of a ‘deductio...

'Live and die in Aristotle’s works.' - Christopher Marlowe, _Faustus_ Aristotle is without doubt one of the most influential people in history. His belief that philosophy should be grounded in observation laid the foundation for the scientific method. His moral philosophy exerted a profound influence on religious thinking and has recently returned to prominence with the resurgence of virtue ethics. His works are so thorough and wide-ranging as to constitute a quasi encyclopaedia of Greek knowledge. Amongst the most important are (...) Physics, Metaphysics, Nicomachean Ethics, Politics, On the Soul, Poetics, and the Organon, with which he created the field of logic and dominated it so thoroughly and for so long that even Kant thought that he had said the last word upon it. This book aims to provide the student and general reader with a comprehensive overview of Aristotle’s thought. It includes an introduction to the life of Aristotle, and – for the first time – a précis of each of his works, including the Organon, Physics, Metaphysics, Nicomachean Ethics, Politics, On the Soul, Poetics, and several others. _Author description:_ Dr Neel Burton is a philosopher and psychiatrist and prize-winning author who lives and teaches in Oxford, England. His other books include Plato’s Shadow, The Art of Failure, and The Meaning of Madness, all also with Acheron Press. (shrink)

In the Organon Aristotle describes some deductive schemata in which inconsistencies do not entail the trivialization of the logical theory involved. This thesis is corroborated by three different theoretical topics by him discussed, which are presented in this paper. We analyse inference schema used by Aristotle in the Protrepticus and the method of indirect demonstration for categorical syllogisms. Both methods exemplify as Aristotle employs classical reductio ad absurdum strategies. Following, we discuss valid syllogisms from opposite premises (contrary and contradictory) (...) studied by the Stagerian in the Analytica Priora (B15). According to him, the following syllogisms are valid from opposite premises, in which small Latin letters stand for terms such as subject and predicate, and capital Latin letters stand for the categorical propositions such as in the traditional notation: (i) in the second figure, Eba,Aba ` Eaa (Cesare), Aba, Eba ` Eaa (Camestres), Eba, I ba ` Oaa (Festino), and Aba,Oba ` Oaa (Baroco); (ii) in the third one, Eab,Aab ` Oaa (Felapton), Oab,Aab ` Oaa (Bocardo) and Eab, Iab ` Oaa (Ferison). Finally, we discuss the passage from the Analytica Posteriora (A11) in which Aristotle states that the Principle of Non-Contradiction is not generally presupposed in all demonstrations (scientific syllogisms), but only in those in which the conclusion must be proved from the Principle; the Stagerian states that if a syllogism of the first figure has the major term consistent, the other terms of the demonstration can be each one separately inconsistent. These results allow us to propose an interpretation of his deductive theory as a broad sense paraconsistent theory. Firstly, we proceed to a hermeneutical analysis, evaluating its logical significance and the interplay of the results with some other points of Aristotle’s philosophy. Secondly, we point to a logical interpretation of the Aristotelian syllogisms from opposite premises in the antilogisms method proposed by Christine Ladd-Franklin in 1883, and we also present a logical treatment of the Aristotelian demonstration with inconsistent material in the paraconsistent logics Cn, 1 _ n _!, introduced by da Costa in 1963. These two issues seem having not yet been analysed in detail in the literature. (shrink)

Francesco Patrizi da Cherso's Discussiones peripateticae are one of the most comprehensive analyses of the whole of Aristotelian philosophy to be published before Werner Jaeger's Aristoteles. The main thrust of the argument in the Discussiones is that whatever Aristotle had said that was true was not new, and that whatever he had said that was new was not true. The article shows how Patrizi proves this with respect to the Organon, and deals with the implications for the history af (...) ancient philosophy in general implied by his stance. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Notes and Discussions ARISTOTLE'S "DE MOTU ANIMALIUM" AND THE SEPARABILITY OF THE SCIENCES In contrast to Plato's vision of a unified science of reality and with a profound effect on subsequent natural science and philosophy, Aristotle urges in the Posterior Analytics and elsewhere that scientific knowledge is to be pursued in limited, separable domains, each with its own true and necessary first principles for the explanation of a (...) discrete range of phenomena, that is, accepted observations and beliefs, from which its investigations are launched (An. Pr. 46al7ff.; An. Post. 74b25, 76a26-3 o, 84b14-18, 88a31; Cael. 3o6a6ff.; Gen. An. 748a7ff.). In an early introduction to a course of lectures on the natural sciences, Aristotle also indicates the order in which those sciences ought to be presented (Mete. 338a2o-~9, 339a5-9; cf. Cael. 268al6, Part. An. 644b~2ff.). The plan is to start with a general discussion of change and motion, then progress to studies of specific natural phenomena, ending with the many species of plants and animals. In the theory of demonstration in Posterior Analytics 1, which is concerned with the organization, justification, and teaching of a finished science, Aristotle maintains that terms cannot ordinarily cross genera; for example, geometry cannot provide demonstrations of truths of arithmetic or aesthetics. Demonstration of a theorem of some one science by means of another can be accomplished when and only when the sciences are related as "subordinate " to "superior" (75b14-17), for example, as harmonics to arithmetic or optics to geometry. A superior science may supply the "reason" for a "fact" known to obtain in the subordinate science (78b34-79a6). Evidently at least part of what he has in mind is the relation between pure and applied sciences.' Aristotle's practice as well as a number of methodological remarks ' See ThomasAquinas,In Post. An. 50.1,15.131, 50.1.25,as wellasJ. Barnes'snoteson An. Post. 78b34,in Aristotle'sPosteriorAnalytics (Oxford:OxfordUniversityPress,1975).For relevant background see Ian Mueller,"Ascendingto Problems:Astronomyand Harmonicsin Republic VII," inJohn Anton,ed., Scienceand the Sciencesin Plato (Albany:StateUniversityof NewYork Press, 1979). [65] 66 HISTORY OF PHILOSOPHY suggest also that the strictures of the Posterior Analytics are not intended to prohibit the heuristic use of material from other disciplines in research (see e.g., Top. 1.14; Part An. 639b17ff., 641a6-14, 642alo-14, 645b15-2o; Ph. 192b8-34, 199a8-21, 199a33-b5). The requirements for science laid down here are very strict, and it is sometimes maintained that Aristotle violates them himself to some degree in other works, but it is not usually believed that he ever denies the separability of the sciences in general. Martha C. Nussbaum has recently presented a lively challenge to this concensus? She argues that Aristotle's late, little known work De Motu Animalium represents a radical but "deliberate and fruitful" rejection of his earlier philosophy of science as enunciated in the Organon and not seriously questioned in other, subsequent writings. Her claim is that in his mature thought about the sciences Aristotle arrives at a significantly "less departmental and more flexible picture of scientific study" (p. 113) and comes to hold that "no inquiry is genuinely separable from a whole group of interlocking studies, and no being can be extensively studied without an account of its placement in the whole of nature" (p. 164). Nussbaum's conclusion is probably not intended to be as Platonic as it may appear at first blush, for she seems actually to be speaking only of connections between sciences of different substances. There is no suggestion that the study of beauty or health or geometry, say, is on a par with the sciences of substances. Nor does she suggest that Aristotle wavers in his conviction that there are fundamental cleavages between the practical and theoretical sciences, which will make a full-blown science of ethics-politics look very different from the demonstrative science of meteorology, for example. Nevertheless, even if limited to the natural sciences of substances, her claim remains an important and interesting one. She holds, more specifically, that Aristotle departs from his earlier position as follows: (1) He recognizes that the biological study of various modes of local motion... (shrink)

ABSTRACT: Alexander of Aphrodisias’ commentaries on Aristotle’s Organon are valuable sources for both Stoic and early Peripatetic logic, and have often been used as such – in particular for early Peripatetic hypothetical syllogistic and Stoic propositional logic. By contrast, this paper explores the role Alexander himself played in the development and transmission of those theories. There are three areas in particular where he seems to have made a difference: First, he drew a connection between certain passages from Aristotle’s Topics (...) and Prior Analytics and the Stoic indemonstrable arguments, and, based on this connection, appropriated at least four kinds of Stoic indemonstrables as Aristotelian. Second, he developed and made use of a specifically Peripatetic terminology in which to describe and discuss those arguments – which facilitated the integration of the indemonstrables into Peripatetic logic. Third, he made some progress towards a solution to the problem of what place and interpretation the Stoic third indemonstrables should be given in a Peripatetic and Platonist setting. Overall, the picture emerges that Alexander persistently (if not always consistently) presented passages from Aristotle’s logical œuvre in a light that makes it appear as if Aristotle was in the possession of a Peripatetic correlate to the Stoic theory of indemonstrables. (shrink)

This paper offers a detailed account of arguments in De Caelo I by which Aristotle tried to demonstrate the necessity of the perpetual existence and the perpetual rotation of the cosmos. On our interpretation, Aristotle’s arguments are naturalistic. Instead of being based (as many have thought) on rules of logic and language, they depend, we argue, on natural science theories about abilities (δυνάμεις), e.g., to move and to change, which things have by nature and about the conditions under which these (...) abilities can be exercised. Our interpretation locates the De Caelo arguments in the context of some central doctrines of the Organon, the Metaphysics, the Physics, and other texts. The De Caelo arguments fit a number of views developed in these texts. Aristotle’s treatments of local motion, of natural motion and change, of necessity and possibility, and of abilities and their exercises are examples. But, as we interpret them, the De Caelo arguments raise serious questions about the role of (and the need for) Metaphysics A’s soulful Unmoved Mover in Aristotle’s overall natural-scientific picture. (shrink)

Placing Aristotle’s ethical works in dialogue with the work of G.E.M. Anscombe, this paper outlines a functional definition of emotions that describes a meta-theory for social-scientific research. Emotions are defined as what makes the thought and action of rational and political animals ethical.

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Aristotle’s “De Interpretatione”: Contradiction and Dialectic by C. W. A. WhitakerEugene GarverC. W. A. Whitaker, Aristotle’s “De Interpretatione”: Contradiction and Dialectic. Oxford: Clarendon Press, 1996. Pp. x + 235. Cloth, $60.00.Traditionally, the De Interpretatione is placed in the Organon between the Categories and the Prior Analytics. Where the Categories is about single terms and the Analytics about inferences, the De Interpretatione is about propositions. That traditional view (...) is presupposed by most contemporary studies of the work, which “concentrate on a small number of passages, which have been treated as isolated oases of philosophical interest in an otherwise barren work,” highlights which include “Aristotle’s semantic theory of philosophy of language” in the first chapter, the first four “linguistic chapters,” and chapter 9 on the Sea Battle (1). I suppose that the square of opposition could be added to Whitaker’s list.Whitaker, in this republication of a doctoral dissertation, wants to challenge both the traditional view and the contemporary concentration by instead studying the work as a coherent whole, whose subject, it turns out, is not propositions after all but “contradictory pairs, which are central to the working of dialectic” (2). The book then proceeds through the De Interpretatione, chapter by chapter. If he succeeds, the De Interpretatione will henceforth be read as preparation for the Topics, rather than for the Analytics. There are also three appendices examining the use of such contradictory pairs in Metaphysics IV, the Topics, and the Posterior Analytics.Thus, the first five chapters of the De Interpretatione explain the nature of assertions, name and verb, and “before that, how language is related to thought and to the real world, and how it is that utterances can make claims about things which are true or false” (8). Where names, verbs, and propositions are part of our ordinary understanding of language, contradictory pairs are not, but are a philosophical understanding of a linguistic structure that has a specifically philosophical, dialectical, purpose. The rest of the De Interpretatione, from chapter 6 on, is the examination of contradiction. Chapters 7–9 classify contradictory pairs by different criteria. Each of these chapters isolates an exception to “the rule that, in every contradictory pair, one member is true and the other false” (79). Chapter 7 looks at the first exception to the rule, “non-universal statements about universals” (91). Whitaker’s project looks good here, since he then shows the dialectical uses of such propositions, and denies their value for the deductive logic of the Analytics. Similarly, in Chapter 8 Aristotle looks at “apparently simple assertions... which are not single” (105), which also have important uses in dialectic. Finally, chapter 9 looks at the third exception to the rule, future singular assertions. One payoff of this book is to place the sea battle discussion in its Aristotelian context. [End Page 459] Whitaker says that most discussions of the sea battle assume that what is at stake is what he calls the “Principle of Bivalence” in which every assertion is either true or false. He instead insists that it is contradictory pairs, not single assertions, that are being tested by future contingents. He thus concludes: “Dialectic is a universal discipline, and its questioning can cover any subject where a question can be posed which has a right and a wrong answer. Chapters 7 to 9... demonstrate that there are limits to the universality of dialectic” (128).Whitaker follows the De Interpretatione chapter by chapter in the remainder of the book. He shows how the later chapters assist the dialectician in “sorting assertions into contradictory pairs” (181). And just as De Interpretatione begins with a consideration of the relation of language, thought, and the world, so it ends by showing the connection between contradictory propositions and opposed beliefs.Whitaker rarely strays from the De Interpretatione to show how our understanding of dialectic is improved by attention to this prerequisite. When he does, for example in a very short discussion of the relation of problems and propositions in the Topics, the results are illuminating. I would have liked more. This book should be useful to the growing numbers of scholars interested in Aristotle’s art of dialectic... (shrink)

This paper offers a detailed account of arguments in De Caelo I by which Aristotle tried to demonstrate the necessity of the perpetual existence and the perpetual rotation of the cosmos. On our interpretation, Aristotle’s arguments are naturalistic. Instead of being based (as many have thought) on rules of logic and language, they depend, we argue, on natural science theories about abilities (δυνάμεις), e.g., to move and to change, which things have by nature and about the conditions under which these (...) abilities can be exercised. Our interpretation locates the De Caelo arguments in the context of some central doctrines of the Organon, the Metaphysics, the Physics, and other texts. The De Caelo arguments fit a number of views developed in these texts. Aristotle’s treatments of local motion, of natural motion and change, of necessity and possibility, and of abilities and their exercises are examples. But, as we interpret them, the De Caelo arguments raise serious questions about the role of (and the need for) Metaphysics A’s soulful Unmoved Mover in Aristotle’s overall natural-scientific picture. (shrink)

This paper offers a detailed account of arguments in De Caelo I by which Aristotle tried to demonstrate the necessity of the perpetual existence and the perpetual rotation of the cosmos. On our interpretation, Aristotle’s arguments are naturalistic. Instead of being based (as many have thought) on rules of logic and language, they depend, we argue, on natural science theories about abilities (δυνάμεις), e.g., to move and to change, which things have by nature and about the conditions under which these (...) abilities can be exercised. Our interpretation locates the De Caelo arguments in the context of some central doctrines of the Organon, the Metaphysics, the Physics, and other texts. The De Caelo arguments fit a number of views developed in these texts. Aristotle’s treatments of local motion, of natural motion and change, of necessity and possibility, and of abilities and their exercises are examples. But, as we interpret them, the De Caelo arguments raise serious questions about the role of (and the need for) Metaphysics A’s soulful Unmoved Mover in Aristotle’s overall natural-scientific picture. (shrink)

Why should Aristotle reject his own criteria for a science to admit this puzzling science of being? Or does he really reject them? Perhaps the science of being is not intended to be a universal science of the type rejected elsewhere. The Metaphysics and the Organon are not concerned with exactly the same questions; and verbal differences may not reflect real or important doctrinal conflicts.

No Órganon Aristóteles descreve alguns esquemas dedutivos nos quais a presença de inconsistências não acarreta a trivialização da teoria lógica envolvida. Esta tese é corroborada por três diferentes situações teóricas estudadas por ele, as quais são apresentadas neste trabalho. Analizamos o esquema de inferência utilizado por Aristóteles no Protrepticus e o método de demonstração indireta para os silogismos categóricos. Ambos os métodos exemplificam como Aristóteles emprega estratégias de redução ao absurdo logicamente clássicas. Na sequência, discutimos os silogismos válidos a partir (...) de premissas opostas (contrárias e contraditórias) estudadas pelo Estagirita no Analytica Priora (B15). De acordo com o autor, os seguintes silogismos são válidos a partir de premissas opostas, nos quais letras latinas minúsculas denotam termos como sujeito e predicado, enquanto que letras latinas maiúsculas denotam proposições categóricas tal como na notação tradicional: (i) na segunda figura, Eba,Aba ` Eaa (Cesare), Aba, Eba ` Eaa (Camestres), Eba, I ba ` Oaa (Festino), e Aba,Oba ` Oaa (Baroco); (ii) na terceira, Eab,Aab ` Oaa (Felapton), Oab,Aab ` Oaa (Bocardo) e Eab, Iab ` Oaa (Ferison). Por fim, discutimos a passagem do Analytica Posteriora (A11) no qual Aristóteles enuncia que o Princípio de Não-Contradição não é, em geral, pressuposto de toda demonstração (silogismo científico), mas apenas daquelas nas quais a conclusão deve ser provada a partir do Princípio; o Estagirita enuncia que se um silogismo da primeira figura tiver o termo maior consistente, os outros termos da demonstração podem ser separadamente inconsistentes. Estes resultados permitem-nos propor uma interpretação de sua teoria dedutiva como uma teoria paraconsistente lato sensu. Primeiramente, efetuamos uma análise hermenêutica, avaliando seu significado lógico e a correlação desses resultados com outros aspectos da filosofia de Aristóteles. Em segundo lugar, consignamos uma interpretação dos silogismos aristotélicos a partir de premissas opostas à luz dos antilogismos propostos por Christine Ladd-Franklin em 1883, e da demonstração aristotélica com termos inconsistentes nas lógicas paraconsistentes Cn, 1 n !, introduzidas por da Costa em 1963. Esses dois aspectos não parecem ter sido ainda detalhadamente analisados na literatura. DOI:10.5007/1808-1711.2010v14n1p71. (shrink)

A thoughtful study which integrates Aristotle's philosophy of science in the Organon and in the Parts of Animals with his actual biological investigations.

THE notion of quantity is basic and it is no surprise that Aristotle refers to it in many places. There are two main discussions, that in the Categories—a part of the Organon which is of great interest to modern logicians and that spread over the physical treatises. Naturally the two treatments overlap, but modern logic is at a far remove from classical cosmology and it is fairly easy to separate them at their sources. This I have attempted to do (...) by considering quantity as an attribute and as divisible. There follows a brief consideration of the notions arrived at for their relevance to modern mathematics with particular reference to the real number system and the notion of infinity. (shrink)

This paper intends to explain key differences between Aristotle’s understanding of the relationships between nous, epistêmê, and the art of syllogistic reasoning(both analytic and dialectical) and the corresponding modern conceptions of intuition, knowledge, and reason. By uncovering paradoxa that Aristotle’s understanding of syllogistic reasoning presents in relation to modern philosophical conceptions of logic and science, I highlight problems of a shift in modern philosophy—a shift that occurs most dramatically in the seventeenth century—toward a project of construction, a pervasive desire for (...) rational certainty, and a general insistence on the reducibility of the sciences. The major motivation of this analysis is my intention to show that modern attempts to reduce science/epistêmê to a single science/method of inquiry occlude dialectical and ethico-political dimensions of “reason” and, hence, also impoverish philosophy’s critical capacities. (shrink)

To meet a dilemma between the axiomatic theory of demonstrative science in Posterior analytics and the non-axiomatic practice of demonstrative science in the physical treatises, Jonathan Barnes has proposed that the theory of demonstration was not meant to guide scientific research but rather scientific pedagogy. The present paper argues that far from contributing directly to oral instruction, the axiomatic account of demonstrative science is a model for the written expression of science. The paper shows how this interpretation accords with related (...) theories in the Organon, including the theories of dialectic in Topics and of deduction in Prior analytics. (shrink)

THE PURPOSE OF THIS NOTE IS TO SHOW THAT BOCHENSKI'S\nBELIEF THAT WE DO NOT FIND IN ARISTOTLE'S LOGICAL WORKS THE\nPRINCIPLE OF THE TRANSITIVITY OF IDENTITY IS MISTAKEN. A\nPASSAGE IS CITED FROM THE SECOND BOOK, CHAPTER TWENTY-ONE\nOF THE "PRIOR ANALYTICS" WHERE ARISTOTLE EXPLICITLY STATES\nTHE LOGICAL PRINCIPLE WHICH BOCHENSKI THINKS IS MISSING\nFROM THE "ORGANON.".

This dissertation studies how Aristotle understands and justifies his Rhetorical Art. It proceeds by explicating the Art in its intellectual context. Rhetoric emerges as a dynamic investigation of human affairs working through the "given" in speech and thought to a plausible account, while giving consideration to the opinions and characters of both speaker and audience within the horizon of a particular occasion. The basic dynamic determines a structure which is comparable to Socrates' requirements in the Phaedrus. That this is the (...) structure and dynamic is supported by considering the fundamentally contingent nature of human experience, understanding the inference types , common sense principles and starting points by which such experience is explicated, and placing such experience in three mutually exclusive genres. Aristotle's art is essentially the resulting plausible account while actual composition is supplementary. ;Aristotle limits the art by reference to dialectic and ethical life. When it is seen that Aristotle's Organon is not a science of logic and the Posterior Analytics is a rarely applicable mode of presentation, the point of dialectic becomes accessible. It too involves strenuous grappling with speech and thought, but its highest purpose lies in peirastic. Peirastic and sophistry are uses of dialectic which have a contrasting moral color. Peirastic aims at the discovery of ignorance and, at the same time, the difference between accident and essence and knowledge and opinion: Being educated is essentially knowing what one does not know. ;What Socrates only alludes to as political art, Aristotle attempts to expound as praxis perfected into phronesis. Even Aristotle does no more than suggest the nature of phronesis negatively as simultaneously a seeking, a finding and an act which is both self-determination and self-knowledge, and none of these separately; it is profoundly disruptive of existing opinion and most clearly to be seen in the rejection of the laws and rules upon which, as deliberation, it is dependent. The Art differs from Gorgias' rhetoric in its emphasis on the plausible and in its subordination to an ethical self-determination that gains the weight of experience appropriated by intelligence and virtue. (shrink)

A critically important development in the tradition of philosophy, as understood by Arabic authors, was the inclusion of both rhetoric and poetics within logic. While these writers' conception of the logical Organon gave appropriate place to the theory of demonstration as found and defined in Aristotle's Posterior Analytics, they added to it the syllogism not only of dialectic, but of rhetoric and poetry as well. By attaching the latter two arts to logic, the Arabic philosophers created a contextual (...) claim about rhetoric and poetry which tended both to weaken the status of either one as a mode of nonlogical discourse and yet potentially to enhance their importance as tools of cognitive activity by recognizing in them some form of syllogistic reasoning. (shrink)

During the years 800-1200 A.D., Arabic scholars studied many of the works of Greek philosophy, and recorded their interpretations. Significant Arabic interpretations of Aristotle's Prior Analytics, the key work of his logical Organon, however, have remained largely unavailable in the West. The recent discovery of several Arabic manuscripts in Istanbul revealed the “Short Commentary on Prior Analytics” by the medieval Arabic philosopher al-Farabi. Nicholas Rescher here presents the first translation of this work in English, and supplements this with (...) an informative introduction and numerous explanatory footnotes. (shrink)

Dans les Refutations sophistiques (sixieme et dernier des traites logiques rassembles sous le titre d'Organon), Aristote analyse et classe les differents types de paralogismes que commettent les sophistes qui s'emploient a refuter leurs interlocuteurs dans le cadre d'un echange dialectique. Assez curieusement, l'erudition contemporaine, qui a pourtant multiplie les etudes sur la dialectique d'Aristote, s'est peu interessee aux Refutations sophistiques, si bien que ce traite peut a bon droit etre tenu pour le parent pauvre de la recherche aristotelicienne. Les (...) plus recents commentaires des Refutations sophistiques remontent en effet a la fin du XIXe siecle. La presente etude, qui offre une longue introduction, une traduction inedite et un commentaire approfondi des Refutations sophistiques, vise a combler une importante lacune et a reveler l'interet d'une oeuvre qui a ete injustement negligee. (shrink)

The presence of premises expressing comparison is a problem for the Aristotelian theory of the dialectical method, first because there is no general theory of comparison in the Organon and secondly because along with propositions on the opposition and inflexion of the terms, comparative statements seem to fall outside the explicit description which Aristotle gives of possible premises. The purpose of this paper is to offer a synthetic theory of comparisons according to Aristotle’s Topics, in an attempt both to (...) supply the aforementioned absence and to highlight the importance of the second problem. There are three main types of premises on the more, the less and the similar: some comparing the degree of possession of a predicate, others comparing the plausibility of a predication and finally, others expressing an analogy. Once expounded the very marked differences that occur between these three classes of propositions, the paper analyses the various kinds of argumentation based on comparative premises and offers a formalization of its logical laws. The complexity of this theory and the volume of topoi involved in the comparisons show the magnitude of a problem that has not been sufficiently studied. (shrink)

There are many disputes about induction in the logic and philosophy of science. One of the problem is that we often use the term „induction“ in different meanings. This is precisely the point of Aristotle, the first thinker who analyzed induction systematically. The aim of the paper is to show that we are confronted with at least four different meanings of induction in Aristotleś writings, to analyze them and to show the role of induction in acquiring scientific knowing and the (...) consequences for the structure and characteristics of Aristotleś system of scientific knowledge. (shrink)

Francesco Patrizi da Cherso's Discussiones peripateticae (1581) are one of the most comprehensive analyses of the whole of Aristotelian philosophy to be published before Werner Jaeger's Aristoteles. The main thrust of the argument in the Discussiones is that whatever Aristotle had said that was true was not new, and that whatever he had said that was new was not true. The article shows how Patrizi proves this with respect to the Organon, and deals with the implications for the history (...) af ancient philosophy in general implied by his stance. (shrink)

The presence of premises expressing comparison is a problem for the Aristotelian theory of the dialectical method, first because there is no general theory of comparison in the Organon and secondly because along with propositions on the opposition and inflexion of the terms, comparative statements seem to fall outside the explicit description which Aristotle gives of possible premises. The purpose of this paper is to offer a synthetic theory of comparisons according to Aristotle’s Topics , in an attempt both (...) to supply the aforementioned absence and to highlight the importance of the second problem. There are three main types of premises on the more, the less and the similar : some comparing the degree of possession of a predicate, others comparing the plausibility of a predication and finally, others expressing an analogy. Once expounded the very marked differences that occur between these three classes of propositions, the paper analyses the various kinds of argumentation based on comparative premises and offers a formalization of its logical laws. The complexity of this theory and the volume of topoi involved in the comparisons show the magnitude of a problem that has not been sufficiently studied. (shrink)

Aristotle says that a fallacy of accident takes place whenever something is held to belong in the same way to an object and to its accident (SE 5 166b28-30). The Received View among interpreters takes “accident” (συμβεβηκός) in that connection to stand for any predicate that is not identical to its subject, and makes the fallacy consist in mistaking predication for identity. Such an analysis, however, gives “accident” a meaning otherwise unattested in the corpus; makes all cases of the fallacy (...) inconclusive, whereas inferences of the same kind are warranted (with a qualification) at different places in the corpus; does not cover cases which in Aristotle’s view fall under the fallacy of accident, for which a different analysis and solution must be provided; and does not square with Aristotle’s own solution in terms of sameness or difference in substance and being. This chapter presents a new take on the subject, grounded on Aristotle’s expressed views in the Sophistical Refutations and other works, according to which the fallacy takes place whenever a substitution of co-extensives, or even of necessary equivalents, makes reciprocation fail to (necessarily) hold between relata. (shrink)

ON A GENERAL READING of the Metaphysics and the treatises of the so-called Organon, the types of assertion which Aristotle would allow as genuine predications seem relatively straightforward. According to the Categories, for instance, a species is characteristically predicated of the individuals falling under it, while genera and differentiae are predicated both of the relevant species and their associated individuals. The predicates are, in these instances, universals in a familiar Aristotelian sense. Furthermore, these intra-categorial predications, such as "Socrates is (...) a man" and "white is a color," are not the only instances of categorial acts. Aristotle also admits certain cross-categorial predications as logically well-formed; for example, "Socrates is white" and "Socrates is in the marketplace". These latter predications are at first glance also intelligible enough, though there are in both cases questions yet to be faced about the logical structure and ontological commitments of such ways of speaking. For Aristotle, one metaphysical theme presented even on the face of these linguistic appearances is the possibility that being a substrate for predication counts as a criterion for ontological primacy or, more generally, that being an ultimate substrate for meaningful discourse is grounds for being primarily real. An obvious corollary to this line of thought is the thesis that whatever might be said of or predicated of such primary substrata is ontologically dependent upon them. Just such a criterion seems to be at work in disqualifying universals from their claim to be substance in a significant sense. Therefore, it would be somewhat surprising to find primary substance appearing anywhere as a predicate. (shrink)

2015 Reprint of 1960 Edition. Full facsimile of the original edition. Not reproduced with Optical Recognition Software. The "Novum Organum," full original title "Novum Organum Scientiarum" or 'new instrument of science', is a Bacon's landmark work scientific method. First published in 1620, the title is a reference to Aristotle's work "Organon," which was his treatise on logic and syllogism. Bacon outlines a new system of logic he believes to be superior to the old ways of syllogism. This is (...) now known as the Baconian method.For Bacon, finding the essence of a thing was a simple process of reduction, and the use of inductive reasoning. In finding the cause of a 'phenomenal nature' such as heat, one must list all of the situations where heat is found. Then another list should be drawn up, listing situations that are similar to those of the first list except for the lack of heat. A third table lists situations where heat can vary. The 'form nature', or cause, of heat must be that which is common to all instances in the first table, is lacking from all instances of the second table and varies by degree in instances of the third table. Bacon's work was instrumental in the historical development of the scientific method. Includes Bacon's Essay on "Great Instauration," and "Preparative Toward a Material and Experimental History.". (shrink)