For Aristotle, demonstrative knowledge is the result of what he calls ‘intellectual learning’, a process in which the knowledge of a conclusion depends on previous knowledge of the premises. Since demonstrations are ultimately based on indemonstrable principles (the knowledge of which is called ‘νοῦς’), Aristotle is often described as advancing a foundationalist doctrine. Without disputing the nomenclature, I shall attempt to show that Aristotle’s ‘foundationalism’ should not be taken as a rationalist theory of epistemic justification, as if the first principles (...) of science could be known as such independently of their explanatory connections to demonstrable propositions. I shall argue that knowing first principles as such involves knowing them as explanatory of other scientific propositions. I shall then explain in which way noetic and demonstrative knowledge are in a sense interdependent cognitive states – even though νοῦς remains distinct from (and, in Aristotle’s words, more ‘accurate’ than) demonstrative knowledge. (shrink)

according to aristotle's posterior analytics, scientific expertise is composed of two different cognitive dispositions. Some propositions in the domain can be scientifically explained, which means that they are known by "demonstration", a deductive argument in which the premises are explanatory of the conclusion. Thus, the kind of cognition that apprehends those propositions is called "demonstrative knowledge".1 However, not all propositions in a scientific domain are demonstrable. Demonstrations are ultimately based on indemonstrable principles, whose knowledge is called "comprehension".2 If the knowledge (...) of all scientific propositions were... (shrink)

This essays considers the hypothesis that Indian epistemology does not clearly recognize, let alone emphasize, an intellectual faculty that apprehends intelligible things, such as essences or “truths of reason,” or elevate knowledge of such things to a status higher than that of sense perception. Evidence for this hypothesis from various sources, including Sāṃkhya, Yoga, Nyāya, and Buddhist logic-epistemological writings, is examined. Special attention is given to a passage from Kumārila’s _Ślokavārttika_, _Pratyakṣasūtra_ chapter, where he argues that the senses directly perceive (...) existence. Kumārila’s view is contrasted to Plato’s, in the _Theaetetus_, that existence is the object, not of the senses, but the soul (_psychē_). (shrink)

With the systematic aim of clarifying the phenomenon sometimes described as “the intellectual apprehension of first principles,” Descartes’ first principle par excellence is interpreted before the historical backcloth of Aristotle’s Posterior Analytics. To begin with, three “faces” of the cogito are distinguished: (1) the proto-cogito (“I think”), (2) the cogito proper (“I think, therefore I am”), and (3) the cogito principle (“Whatever thinks, is”). There follows a detailed (though inevitably somewhat conjectural) reconstruction of the transition of the mind from (1) (...) via (3) to (2) and back again to (3). What emerges is, surprisingly, a non-circular, non-logical, and ultimately non-mysterious process by which first principles implicitly contained in a complex intuition are gradually rendered explicit (and, if abstract, grasped in their abstract universality). This process bears a striking family resemblance to that intuitive induction (“grasping the universal in the particular”) which Aristotle scholars have distinguished from empirical forms of induction. (shrink)

The core sense of pistis as understood in Posterior Analytics, De Anima, and the Rhetoric is not that of a logical relation in which cognitively grasped propositions stand in respect to one another, but the result of an act of socially embedded interpersonal communication, a willing acceptance of guidance offered in respect to action. Even when pistis seems to have an exclusively epistemological sense, this focal meaning of pistis is implicit; to have pistis in a proposition is to willingly accept (...) that proposition as a basis for some kind of activity (albeit possibly theoretical) as a result of some kind of communicative act. This is in accordance with Aristotle’s understanding of argumentation as a social practice, entered into in order lead others to certain actions, for certain ends. Understanding pistis in this way allows us to understand how it is that pistis admits of quantitative variation. (shrink)

Aristotle’s account of epistēmē is foundationalist. In contrast, the web of dialectical argumentation that constitutes justification for scientific principles is coherentist. Aristotle’s account of explanation is structurally parallel to the argument for a foundationalist account of justification. He accepts the first argument but his coherentist accounts of justification indicate that he would not accept the second. Where is the disanalogy? For Aristotle, the intelligibility of a demonstrative premise is the cause of the intelligibility of a demonstrated conclusion and causation is (...) asymmetric. Within the Posterior Analytics itself, Aristotle does not account for this, but elsewhere he develops the resources for doing so: the cause is what acts on a substrate to actualize a potential in that substrate, resulting in the effect. On the other hand, it may well happen that two propositions entail each other, in which case one may as well justify the one on the basis of the other as vice versa. (shrink)

Abstract In Posterior Analytics II.19 Aristotle raises and answers the question, how do first principles become known? The usual view is that the question asks about the process or method by which we learn principles and that his answer is induction. I argue that the question asks about the original prior knowledge from which principles become known and that his answer is perception. Hence the aim of II.19 is not to explain how we get all the way to principles but (...) to defend the claim that our knowledge of them originates in perception. Aristotle explains how we learn principles earlier in book II, in his account of definitional inquiry. In II.19 he explains how we reach by induction the preliminary accounts necessary for such inquiries. (shrink)

In Posterior Analytics 2.19, Aristotle argues that we cannot have innate knowledge of first principles because if we did we would have the most precise items of knowledge without noticing, which is impossible. To understand Aristotle’s argument we need to understand why he thinks we cannot possess these items of knowledge without noticing. In this paper, I present three different answers to this question and three different readings of his argument corresponding to them. The first two readings focus on the (...) fact that we do not use the knowledge we allegedly possess innately. However, I argue that these readings fail to produce convincing arguments. I then offer a third reading, which focuses on the fact that we do not notice the knowledge we allegedly possess innately when we use it for the first time. I argue that this reading produces a more convincing argument than either of the first two. (shrink)

According to the standard and largely traditional interpretation, Aristotle’s conception of nous, at least as it occurs in the Posterior Analytics, is geared against a certain set of skeptical worries about the possibility of scientific knowledge, and ultimately of the knowledge of Aristotelian first principles. On this view, Aristotle introduces nous as an intuitive faculty that grasps the first principles once and for all as true in such a way that it does not leave any room for the skeptic to (...) press his skeptical point any further. Thus the tradi- tional interpretation views Aristotelian nous as having an internalist justificatory role in Aristotelian epistemology. In contrast, a minority (empiricist) view that has emerged recently holds the same internalist justificatory view of nous but rejects its internally certifiable infallibility by stressing the connection between nous and Aristotelian induction. I argue that both approaches are flawed in that Aristotle’s project in the Posterior Analytics is not to answer the skeptic on internalist justificatory grounds, but rather lay out a largely externalist explication of scientific knowledge, i.e. what scientific knowledge consists in, without worrying as to whether we can ever show the skeptic to his satisfaction that we do ever possess knowledge so defined. (shrink)

The following is a critical and historical account of Aristotelian Essentialism informed by recent work on Aristotle’s modal syllogistic. The semantics of the modal syllogistic are interpreted in a way that is motivated by Aristotle, and also make his validity claims in the Prior Analytics consistent to a higher degree than previously developed interpretative models. In Chapter One, ancient and contemporary objections to the Aristotelian modal syllogistic are discussed. A resolution to apparent inconsistencies in Aristotle’s modal syllogistic is proposed and (...) developed out of recent work by Patterson, Rini, and Malink. In particular, I argue that the semantics of negation is distinct in modal context from those of assertoric negative claims. Given my interpretive model of Aristotle’s semantics, in Chapter Two, I provide proofs for each of the mixed apodictic syllogisms, and propose a method of using Venn Diagrams to visualize the validity claims Aristotle makes in the Prior Analytics. Chapter Three explores how Aristotle’s syllogistic fits within Aristotle’s philosophy of science and demonstration, particularly within the context of the Posterior Analytics. Consideration is given to the Aristotelian understanding of the relationship among necessity, explanation, definition, and essence. Chapter Four applies Aristotelian modal logic in contemporary contexts. I contrast Aristotelian modality and essentialism with contemporary modalism based upon the semantics of possible worlds, e.g. Kripke and Putnam. I also develop an account of how Aristotelian modal logic can ground a sortal dependent theory of identity, as discussed by Wiggins. (shrink)

Aristotel na samem zaključku Druge analitike zapiše: »nič ne more biti skladno z resnico bolj od znanstvenega razumevanja, razen mišljenja «. Ta trditev bi lahko bila problematična, če upoštevamo aristotelsko načelo izključenega tretjega, ki pravi, da med resnico in zmoto ne obstajajo vmesne stopnje. Dejansko Aristotelova logika ne pušča prostora za naraščajoče resnice, tako da je treba to domnevno višjo resnico razumeti na bolj posreden način. Po kritični obravnavi nekaj zadevne literature bo pomen Aristotelovega izraza alēthésteron razumljen na naslednje načine: (...) natančneje zaradi njegovega enotnega predmeta; bolj gotovo in prepričljivo; bolj orientacijsko in vodeče; pojmovno predhodno; in končno bolj vzročno za resnico. Mišljenje bo razumljeno kot ne-inferencialen način razumevanja, katerega pozitivna resničnostna vrednost je vedno enaka tisti, ki jo zagotavlja znanstveno vedenje. (shrink)

Modern philosophy is often seen as characterized by a shift of focus from the things themselves to our knowledge of them, i.e., by a turn to the subject and subjectivity. The philosophy of Immanuel Kant is seen as the site of the emergence of the idea of a subject that constitutes the object of knowledge, and thus plays a central role in this narrative. This study examines Kant’s theory of knowledge at the intersection between the history of science and the (...) history of the modern subject, on the one hand, and in the tension between modern experimental and mathematical science and more traditional Aristotelian conceptions of epistemic perfection, on the other. The dissertation consists of four chapters. In the first chapter, I examine Kant’s concept of experience, and its relation both to Early Modern experimentalism and to the Wolffian tradition. In the second chapter, I argue that Kant adheres to a broadly Aristotelian conception of epistemic perfection – the ideal of understanding – but transforms this ideal into the self-understanding of reason, where reason can only have insight into the products of its own activity. In the third chapter, I use Kant’s conception of space and time to exemplify such products of reason, and argue that, for Kant, space and time are constructively generated representations that function as principles for ordering empirical knowledge. In the fourth and final chapter, I examine Kant’s conception of the subject, and situate it in relation to both the long history of the modern subject and German Enlightenment philosophy. Whereas the modern philosophical conception of the subject is usually taken to combine an ‘I’ functioning as the subject to which mental acts are attributed and an ‘I’ that has the ability to immediately perceive itself as the subject of these acts, I argue that Kant reconceives this relation between the ‘I’ and its acts as a purely intellectual self-relation. The unity of the ‘I’ is not a perceived unity, but a unity brought about by the intellect. (shrink)

Pretendemos averiguar como Aristóteles concebe a passagem do nosso conhecimento prévio do mundo ao conhecimento científico, avaliando os pressupostos e consequências de sua resposta ao paradoxo de Mênon e atentando para a metodologia científica defendida nos Segundos Analíticos. Quanto ao conhecimento preliminar necessário à edificação da ciência, procuraremos caracterizar seus tipos e também os meios pelos quais ele pode vir a ser adquirido por nós. Buscaremos estabelecer também as propriedades que o conhecimento científico deve possuir em relação à sua necessidade, (...) universalidade e caráter explanatório. Buscaremos marcar, com precisão, a natureza da conclusão científica segundo a teoria científica aristotélica, argumentando que, nas conclusões, o atributo demonstrado, em relação com seu substrato, representa uma propriedade por si concomitante. Pretendemos averiguar como os diferentes tipos de demonstração e definição respondem a diferentes estágios de organização do saber prévio e a diferentes estágios na estruturação das demonstrações propriamente científicas, e, por conseguinte, como esses se organizam de modo a responder as quatro perguntas que toda investigação científica deve abarcar em seus dois estágios. (shrink)

Our purpose is to study Aristotle?s solution, in the second book of the Posterior Analytics, for the problem of the apprehension of the principles of science. We attend to the relations between the concepts of induction (epagoge) and intelligence (nous) found in the chapter 19, which seems to confirm that the acquisition of the principles is reached by a process of empirical observation. We examine the method, proposed in chapters 13 to 17, for the right formulation of definitions, which seems (...) to attribute to dialectics the task of finding the principles. Aristotle seems to indicate two different methods ? on one hand, the empirical observation followed by intelligence, on other, the dialectics ? for the apprehension of the principles. Our purpose is to study possible solutions for the problem of the concurrence between these two methods in order to refute as much a strictly empiricist interpretation as a strictly dialectical one. (shrink)

Aristotle's cognitive ideal is a form of understanding that requires a sophisticated grasp of scientific first principles. At the end of the Analytics, Aristotle tells us that we learn these principles by induction. But on the whole, commentators have found this an implausible claim: induction seems far too basic a process to yield the sort of knowledge Aristotle's account requires. In this paper I argue that this criticism is misguided. I defend a broader reading of Aristotelian induction, on which there's (...) good sense to be made of the claim that we come to grasp first principles inductively, and show that this reading is a natural one given Aristotle's broader views on scientific learning. (shrink)

In disagreement with Claudia Baracchi’s controversial thesis that there is a “simultaneity and indissolubility” if not an “identity” of intelligence (nous) and perception (aisthēsis) at the core of Aristotle’s philosophy, I will argue that Aristotle maintains a fundamental distinction between these cognitive faculties. My goal in this paper is to examine specific parts of two central and complex passages, VI.8, 1142a12-30 and VI.11, 1143a33-b15, from the Nicomachean Ethics to show that Baracchi’s view is unpersuasive. I will show that Aristotle considers (...) nous to be a different capacity than mere perception and one through which particulars and indemonstrable principles become intelligible. Moreover, I will show that Aristotle considers that the objects of nous differ in kind from those that sensation (our senses) and perception (inference from our senses) grasp. After examining critically Baracchi’s thesis in light of a close reading of those two relevant passages, I will conclude the paper by showing the significance of Aristotle’s claim that a state is defined in terms of its objects of apprehension for understanding the distinction between nous and aisthēsis. (shrink)

Essa dissertação de mestrado cuida do problema do conhecimento dos primeiros princípios em Aristóteles, mais precisamente, das vias de acesso adequadas a provê-lo. Dada a primordialidade de um tal conhecimento, erige-se a questão de método: por qual via estaria garantido o acesso àquilo que constitui todo o fundamento e “razão para” do edifício do conhecimento filosófico e científico? Aristóteles, nos Segundos Analíticos, atribui à indução (epagoge) e à inteligência (nous) este papel, mas nos Tópicos o filósofo menciona que a dialética (...) é util aos primeiros princípios. O propósito maior desta pesquisa está não tanto no conciliar estes métodos, procurando atribuir alguma significação tanto aos Segundos Analíticos quanto aos Tópicos, mas no procurar viabilizar alguma fala da dialética no que concerne ao conhecimento dos primeiros princípios, sem, contudo, extrapolar o que parece estar autorizado a partir da leitura dos textos aristotélicos. Neste intento, propõe-se a análise da diaporemática de que cuida Aristóteles em Metafísica Β, visando investigar se esta de algum modo excede a dialética nos limites com as quais esta se debate. (shrink)

Examino Acerca del cielo (De caelo) I 2 con el fin de mostrar allí la presencia de la demostración científica. Este desarrollo pretende aportar nueva evidencia en favor de la no discrepancia entre teoría y praxis científica en Aristóteles (Barnes, 1969) y de relativizar la interpretación de que el método real y únicamente usado es la dialéctica (cuyo antecedente se remonta a Owen, 1980). Además, siguiendo la propuesta hermenéutica de Gotthelf (1987) y Detel (1993 y 1997), mostraré de qué modo (...) se utiliza la demostración científica en la prueba de la existencia del cuerpo simple o éter. Ofreceré también una reconstrucción de las pruebas mediante la elaboración de un esquema que abarque el conjunto de las deducciones. Estos últimos desarrollos constituyen el aporte más novedoso del presente artículo. I examine On the Heavens (DC) 12 in order to show there the presence of scientific demonstration. This development tries to contribute new evidence in favor of the not discrepancy between theory and scientific practice in Aristotle (Barnes, 1969) and to make the interpretation that method real and solely used is dialectic relative (whose precedent goes back to Owen, 1980). In addition, following the hermeneutic proposal of Gotthelf (1987) and Detel (1993 and 1997), I will show how scientific demonstration is used in the proof of simple body (ether) existence. I will offer also a reconstruction of the proof by means of the elaboration of a scheme that includes the set of deductions. The latter developments constitute the most new contribution of the present paper. (shrink)