_Dialectic and Dialogue_ seeks to define the method and the aims of Plato's dialectic in both the "inconclusive" dialogues and the dialogues that describe and practice a method of hypothesis. Departing from most treatments of Plato, Gonzalez argues that the philosophical knowledge at which dialectic aims is nonpropositional, practical, and reflexive. The result is a reassessment of how Plato understood the nature of philosophy.

The study of Plato's dialogues has traditionally oscillated between two paradigms: one that portrays the dialogues as treatises expounding doctrines and one that sees them as purely skeptical, rhetorical, or literary. This collection of new essays by twelve noted Plato scholars illustrates the fruitfulness of breaking away from those paradigms, which have divided Platonic scholarship and led it to a number of dead ends. While the essays are diverse in their approaches, each seeks to find a 'third way' to understand (...) Plato, reading him as neither a dogmatist nor a skeptic but as a philosopher capable of reconciling the content and form of his writings. (shrink)

While Aristotle’s explicit focus in Metaphysics Theta 1-5 is dunamis in the sense of the ‘capability’ a thing has to originate change in something else or in itself qua other, practically all translators, when they arrive at chapter four, switch to ‘possible’ and ‘impossible’ as translations of dunaton and adunaton. Such a switch is neither defensible nor necessary and the relevance of Theta 4 is understood only without it.

Language and speech depend on a relatively well defined neural circuitry, located predominantly in the left hemisphere. In this article, I discuss the origin of the speech circuit in early humans, as an expansion of an auditory-vocal articulatory network that took place after the last common ancestor with the chimpanzee. I will attempt to converge this perspective with aspects of the Mirror System Hypothesis, particularly those related to the emergence of a meaningful grammar in human communication. Basically, the strengthening of (...) auditory-vocal connectivity via the arcuate fasciculus and related tracts generated an expansion of working memory capacity for vocalizations, that was key for learning complex utterances. This process was concomitant with the development of a robust interface with visual working memory, both in the dorsal and ventral streams of auditory and visual processing. This enabled the bidirectional translation of sequential codes into hierarchical visual representations, through the development of a multimodal interface between both systems. (shrink)

a central thesis of martin heidegger's first reading of a Platonic dialogue, the 1924/25 course on the Sophist, was that, "for the Greeks, being means precisely to be present, to be in the present [Anwesend-sein, Gegenwärtig-sein]."1 Heidegger saw this Greek interpretation of being as leading to Plato's specific interpretation of being as eidos or idea. Heidegger makes this clear in the following passage from another Plato course, the 1931–32 course On the Essence of Truth: "'Idea' is the look [der Anblick] (...) of what something offers itself as being. These looks [Anblicke] are that in which the individual thing presents itself as this or that, that in which it is present and presencing [präsent und anwesend].... (shrink)

As it is well known, in the forties of the past century, Curry proved that in any logic S closed under Modus Ponens, uniform substitution of propositional variables and the Contraction Law, the naïve Comprehension axiom trivializes S in the sense that all propositions are derivable in S plus CA. Not less known is the fact that, ever since Curry published his proof, theses and rules weaker than W have been shown to cause the same effect as W causes. Among (...) these, the Contraction rule or the Modus Ponens axiom, for example, are to be noted. But, moreover, as Brady has proved, even the Generalized Modus Ponens axiom or the Generalized Contraction rule give rise to “Curry’s Paradox” under the same circumstances as W does. In some previous work by us, “weak relevant model structures” are defined on “weak relevant matrices” by generalizing Brady’s model structure MCL built upon Meyer’s Crystal matrix CL. We have proved that wr-ms only verify logics with the “depth relevance condition”. The aim of this paper is to show how to falsify gMPa and gRW in certain wr-ms. In particular, it will be shown that gMPa is falisfied in any wr-ms and gRW in any wr-ms verifying Routley and Meyer’s basic positive logic B+. (shrink)

The “destructive” appropriation of the Aristotelian concepts of δύναµις and ἐνέργεια played a central role in Martin Heidegger’s own reflection on the meaning of being. While this has been generally known for some time, it is only now that we can understand the full scope, complexity and evolving character of this appropriation. One reason is the fairly recent publication of notes and protocols for seminars Heidegger led on Aristotle as late as the 1940s and 1950s. Another is the existence of (...) student transcripts in the Special Collections Department of Stanford University for a number of unpublished seminars on Aristotle that Heidegger led during the 1920s. Considering all of this material enables us to see both the significance of Heidegger’s interpretation of the δύναµις/ἐνέργιεα pair as well as how this interpretation evolved along with his own “Kehre”: from a “pandynamic” conception of being to being as “Ereignis.”. (shrink)

During the 1920s Heidegger gave no less than twelve seminars and lecture courses devoted either exclusively or in large part to the reading of Aristotle's texts. Seven of these, especially the smaller seminars for advanced students, have not been published and apparently will never be included in the Gesamtausgabe. My focus here is on the very first of these. Billed as a reading of Aristotle's De Anima, much of it was devoted to Aristotle's Metaphysics. This decision not to separate Aristotle's (...) “psychology” from his “ontology” is a key move of the seminar that anticipates the project of Being and Time. This and many other ways in which Heidegger's early reading of De Anima anticipates the key moves of the later book constitute one of the reasons for its importance. Another is that the seminar allows us to see what gets suppressed in Heidegger's reading of Aristotle, most significantly, the phenomenon of life itself in favor of an eventual focus on the being of human life or Dasein. This early seminar thus enables us not only to better understand Heidegger's project, but also to raise some fundamental questions concerning it. (shrink)

Pendant l’ete de 1928 Heidegger a offert un seminaire sur le troisieme livre de la Physique d’Aristote et donc sur l’explication aristotelicienne de la nature du mouvement. La derniere seance de ce cours, qui eut lieu le 25 juillet, est d’une grande importance parce que c’est a cette occasion que Heidegger va au livre neuf de la Metaphysique pour essayer de comprendre la notion ontologique qui est a la base de l’interpretation aristotelicienne du mouvement : l’energeia. Mais dans les protocoles (...) de ce seminaire qui se trouvent parmi les papiers de Heidegger et qui ont ete publies recemment dans le volume 83 de la Gesamtausgabe, la seance du 25 juillet se trouve absente. Ce fait a conduit l’editeur a conclure que le seminaire avait pris fin le 23 juillet, sans s’apercevoir donc que la conclusion du seminaire manquait. Il existe heureusement une transcription preservee parmi les papiers de l’etudiante de Heidegger, Helene Weiss, et accessible aujourd’hui dans les archives de l’universite de Stanford. Cette transcription montre que la derniere session eut bien lieu le 25 juillet et nous offre la lecture heideggerienne de Metaphysique IX qui ne se trouve pas dans la version de la Gesamtausgabe. C’est dans le contexte de cette lecture que Heidegger fait la declaration etonnante qui nous concerne ici : ≪Dans la derniere instance, la Metaphysique Θ revient a Platon ; la priorite de l’energeia est fondamentalement la meme chose que l’epekeina des Idees. ≫La première tâche que je me propose ici sera d’expliquer cette déclaration qui suggère une relation tres etroite, ou meme une identite, entre la notion aristotelicienne de l’energeia comme ayant une priorite vis‑a‑vis de la dunamis et la notion platonicienne de l’Idee du Bien comme etant epekeina de l’ousia. Pour cette explication je ferai appel non seulement au contexte du seminaire de 1928, mais aussi aux textes plus tardifs comme les Beitrage et les cours sur Nietzsche dans lesquels Heidegger semble presupposer et développer sa déclaration de 1928. Ma seconde tâche sera de comparer cette thèse heideggerienne a la tentative de Gadamer de surmonter l’opposition traditionnelle entre les ontologies de Platon et d’Aristote en faisant appel a l’idee du bien chez les deux. Cette tentative se trouve dans le texte Die Idee des Guten zwischen Plato und Aristoteles. La comparaison que j’entreprends ici va montrer certaines affinites entre les interpretations de l’Idee du Bien chez Heidegger et Gadamer, mais aussi de profondes differences qui vont determiner leurs differents projets philosophiques. (shrink)

The present paper has a negative aim and a positive aim, both limited in the present context to a sketch or outline. The negative aim, today less controversial, is to show that Aristotle’s theory of final causality has little or nothing to do with the teleology rejected by modern science and that, therefore, far from having been rendered obsolete, it has yet to be fully understood. This aim will be met through the identification and brief discussion of some key points (...) on which Aristotle’s theory differs from teleology as still commonly understood. The positive aim is more controversial as it proposes that we take an ontology of life as the proper context for understanding the significance and nature of final causation in Aristotle. The argument for final causation, in other words, is that, without it, we would lose the phenomenon of life and, indeed, of nature altogether, reducing nature to the inanimate and mechanical. (shrink)

El presente ensayo explora el itinerario de la crítica que Nietzsche ejerció sobre el arte de Wagner en tres pasos. Primero, se trata de reconocer la juvenil admiración del filósofo por la ópera wagneriana entendida como un renacimiento del drama musical antiguo. Luego, se explora el tránsito hacia su desilusión en la clave de la influencia de Schopenhauer sobre Wagner. Finalmente, el ensayo remata en la crítica madura de Nietzsche sobre Wagner, donde se advierten los prolegómenos decimonónicos de la transformación (...) general del arte en espectáculo en el sentido contemporáneo. (shrink)

Aristotle notoriously begins his examination of being in the sense ofdunamisandenergeiainMetaphysicsTheta with what he describes as the sense that is ‘most dominant’ but not useful for his present aim. He proceeds to define the not-useful sense ofdunamisas “the principle of change in something else or in itself qua other”, along with other senses derived from this primary sense. But what then is the useful sense? All that Aristotle tells us at the outset is that it is a sense that extends (...) “beyond things spoken of only in relation to motion” and nowhere in Book Theta does he explicitly identify the useful sense as such. This has allowed for very different interpretations of the useful sense in the literature, the primary ones being that it is (1) ‘possibility’, (2) the potential to receive a form, (3) being-potentially-x understood modally as encompassing all specific senses ofdunamis, and (4) capacity for substantial change. The present paper argues that there are significant problems with all of these suggestions and defends an identification of the useful sense ofdunamiswith the sense that Aristotle explicitly opposes to the not-useful sense at the start of Theta 8:phusis(‘nature’). This goes hand-in-hand with an identification of the useful sense ofenergeiawith ‘activity’ as distinguished from motion/change at the end of Theta 6. What makes these senses ofdunamisandenergeiathe useful ones for Aristotle’s present aim is that they are required to explain fully the priority ofenergeiatodunamisin substance defended in Theta 8, they support the identification in Theta 9 ofenergeiawith the good, and they explain the unity of the only substances that Aristotle recognizes as being genuinely substances: natural living substances. (shrink)

Hay doble pulsión en el centro de la discusión del razonamiento deductivo. Una conduce aparentemente a la abstracción y dominios arbitrarios, mientras que la otra conduce a la concreción y la dependencia del contenido. El objetivo de esta investigación es diseñar, aplicar y validar un instrumento de evaluación que nos permita corroborar si el razonamiento deductivo maneja reglas lógicas o contenidos. La muestra de estudio se compuso de 80 participantes (edad 18-77 años). El test consta de 60 ítems categorizados en: (...) formalidad, integrabilidad, complejidad y modalidad. Los resultados ponen de manifiesto la fiabilidad del test de razonamiento deductivo con un alpha de Cronbach. 775 y con un índice de validación. 850 para el índice de inteligencia no verbal (INV) del RIAS. Cómo conclusión inferimos que el razonador deductivo no dispone de un cuerpo preciso de reglas generales deductivas, sino que usa colecciones de reglas heurísticas cada vez menos abstractas. (shrink)

It is an intimate experience for us to think, to understand and to perceive things as being identical to themselves, and to suppose, consequently, that things are truly “what” they are. Something is always conceived as itself. The given is given full of itself in all its modifications. For instance, I can think or perceive partially some lips, I can see them almost in their whole or in some of their aspects, or just see them disappear. But it does not (...) seem to be possible to think or to perceive a given as almost itself, as an aspect or as part of itself. It is the aim of this work to study the assumptions and conditions for the original position of sameness in experience, just as it occurs in the synthesis of the datum singular and distinct. The polarization of single tone (einstimmig) intentional rays in an αvτó already contains the aporiae peculiar to the experience of the identical, whose revelation shall lead us, on the one hand, to one of the nuclei of the analysis of passive synthesis, and, on the other hand, to point up how critical revision of the numerical or extensional model of self-identity is for the unity of meaning. Then, it will be a question of pointing out the reasons why in a phenomenology of identity, the renunciation of the phenomenological legitimacy of the αvτó as a guarantee for the different positions of identity must be observed. DOI: 10.1007/978-94-011-3464-4_13 . (shrink)

This paper defends a ‘perspectivist’ reading of Plato’s dialogues. According to this reading, each dialogue presents a particular and limited perspective on the truth, conditioned by the specific context, aim and characters, where this perspective, not claiming to represent the whole truth on a topic, is not incompatible with the possibly very different perspectives found in other dialogues nor, on the other hand, can be subordinated or assimilated to one of these other perspectives. This model is contrasted to the other (...) models that have been proposed, i.e., Unitarianism, Developmentalism, and ‘Prolepticism’, and is shown to address and overcome the limitations of each. One major advantage of ‘perspectivism’ against the other interpretative models is that, unlike them, it can do full justice to the literary and dramatic character of the dialogues without falling into the opposite extreme of turning them into literary games with no positive philosophical content. To say that Plato’s dialogues are ‘perspectivist’ is not to say that they contain no ‘doctrines’ on the soul, for example, but, on the contrary, to stress the plurality of doctrines, with the observation that each is true within the limits of the argumentative function it is introduced to serve and of the specific dialogical context. (shrink)

El fracaso político de la Revolución francesa deja un regusto amargo de que el problema del ser humano se encuentra en la Modernidad y, concretamente, en la escisión radical que abre la conciencia. Los ideales del Bien y la Verdad son señaladas como formas muertas, carentes de potencia erótica, inservibles para movilizar al ser y, por tanto, anacrónicos para una época que quiere despertar bajo el signo de la Belleza. Un joven Schelling escribe bajo este sol naciente una obra en (...) la que el arte aparece como una praxis capaz de suturar aquella herida que abre la conciencia. La imaginación y la síntesis poética son elementos ineludibles en el transitar por una vida humana que busca su plenitud en el retorno a la unidad originaria con lo Absoluto. El gesto del genio artístico será el privilegiado para este tránsito al origen. (shrink)

Reseña: Omar García Corona. Una crítica descolonial de la Escuela de Frankfurt. Buenos Aires, Poliedro – Editorial de la Universidad de San Isidro, 2021.

This article identifies a double allusion to the tragic characters of Phaedra and Eriphyle in Amm. Marc. 14.1.3 and considers its possible meanings. In combination, these allusions evoke the double nature of the story of Eriphyle, therefore functioning as a reference to the double nature of Caesar Gallus’ depiction in Ammianus. The double allusion consequently forms part of Ammianus’ tragic style throughout Book 14. Having identified the presence of this double allusion, the article illuminates its possible meaning by connecting Ammianus’ (...) passage to the Virgilian rewriting of the description of Eriphyle in Homer. (shrink)

Trata de uma leitura do papel da tecnociência no que tange ao esvaziamento ético com o qual nos deparamos. Para tanto, vale-se das abordagens feitas por Jürgen Habermas e Hans Jonas. Neste sentido, opera com alguns conceitos fundamentais de ambos os teóricos, no que se refere ao tema posto. Do primeiro filósofo refletir-se-á acerca do esvaziamento dos significados do mundo da vida face ao caráter instrumentalizador que a razão assumiu após o iluminismo. Do segundo, analisar- se-á o vácuo ético operante (...) diante do poder que foi outorgado ao homem pela tecnociência. (shrink)

In 2000, the world of anthropology was rocked by a high-profile debate over the fieldwork performed by two prominent anthropologists, Napoleon Chagnon and James V. Neel, among the Yanamamo tribe of South America. The controversy was fueled by the publication of Patrick Tierney's incendiary Darkness in El Dorado which accused Chagnon of not only misinterpreting but actually inciting some of the violence he perceived among these "fierce people". Tierney also pointed the finger at Neel as the unwitting agent of a (...) deadly measles outbreak. Attracting a firestorm of attention, Tierney's book went straight to the heart of anthropology's most pressing questions: What are the right ways to study a tribal people? How can scientists avoid unduly influencing those among whom they live? What guidelines should govern the interactions - economic, social, medical, and sexual - between a scientist in the field and the people being studied? This volume represents anthropology's thoughtful, measured reply to the issues raised by this heated controversy. Placing the dispute within the context of ongoing debates over the ethics of biomedical research among human populations, the contributors to this volume discuss how the interaction between investigators and their subjects can most sensibly be governed. They consider the responsibility of the media in disseminating anti-scientific and pseudo-scientific views, and how scientists might best educate journalists to enable them to effectively educate others. In the wake of what was widely construed as a major scientific scandal, this landmark volume lays out in detail the principles and ground rules of anthropological and scientific fieldwork. (shrink)

Sin duda alguna John Henry Newman (1801-1890) fue una figura importante y relevante dentro del mundo religioso y universitario, no en vano se trata de una autoridad eclesial y académica y de perenne referencia cuando se quiere hablar de educación superior. Todas y cada una de sus ideas han ido jalonando el ideario de lo que ha de ser una universidad que se precie en llamarse católica, pues supo darle el toque de calidad que una universidad de este nivel ha (...) de poseer en sus estudios. Para Newman la unidad de vida es algo sustantivo de la cultura católica y esta línea de actuación fue la que guio sus pasos cuando recibió en encargo en 1851 de fundar la Universidad Católica en Dublín. El mundo universitario representa para el cardenal Newman la totalidad del saber sin exclusión alguna. Su legado no muere y se presenta en pleno siglo XXI como una de las perspectivas más adecuadas para entender el quehacer universitario en todos sus ámbitos, sea de ideario católico o de otro tipo de inspiraciones. (shrink)

We define two extensions of Lewis’ S3 with two versions of Peirce’s Law. We prove that both of them have the Ackermann Property.

Se queremos analizar as causas do ascenso electoral do PP e a conquista da alcaldía, deberiamos ter en conta que durante moitos anos o PSOE traballou para o PP, abandonando na Coruña a política de esquerdas e unha pedagoxía política progresista, e centrando o seu obxectivo en recoller votos da dereita. Cando o impulsor desa política é «desterrado» ao Vaticano, o PP non tivo máis que recoller os votos que previamente sementara o propio PSOE. E aí están os resultados. Este (...) libro completa unha triloxía iniciada coa publicación en 2003 de A Coruña de Paco Vázquez e en 2007 con Outra Coruña é posíbel, que poden ser ferramentas útiles para que a cidadanía e futuras xeracións poidan coñecer un pouco mellor a historia dos últimos corenta anos. Os auténticos valedores de Carlos Negreira, o mesmo que de Paco Vázquez, son os poderes fácticos da Coruña, é dicir, aqueles que sempre mandaron e nunca se presentan ás eleccións. Antonio Fontenla, presidente da Confederación de Empresario, presentaba así a Carlos Negreira: «Es un amigo con el que puedes contar; con pocas personas nos hemos entendido tan bien, casi sin hablar». Esta sintonía entre o poder económico e político continuou durante os catro anos do goberno de Negreira, favorecendo os intereses do capital, de grandes empresarios e promotores inmobiliarios, e procurando manter as honras a fascistas concedidas durante a ditadura. Está nas nosas mans acabar con esta longa noite de pedra. (shrink)