" Savoir " n'est que l'une des variantes de la traduction du grec Sophia, et " l'amour du savoir ", l'une des façons de traduire le terme forgé, dit-on, dans le milieu socratique, philosophia. Faire entendre dans Sophia " savoir " plutôt que " sagesse ", c'est orienter cette présentation de Platon vers les aspects épistémologiques de sa philosophie, plutôt que sur son versant politique et éthique. Qu'est-ce donc que le savoir pour Socrate ou, à travers le Socrate des dialogues, (...) pour Platon? On retiendra pour significatif de la recherche contemporaine que l'ensemble des contributions qui forment ce volume examinent la question à partir de la République. La République, puis la trilogie Théétète, Sophiste, Politique, et enfin le Parménide : voilà le corpus sur lequel on interroge ici Platon. (shrink)

2001, l’année de naissance de Philosophie antique, fut aussi celle du vingt-quatrième centenaire de la mort de Socrate. André Laks et moi fûmes trop heureux de pouvoir lier notre numéro inaugural aux diverses célébrations qui marquèrent cette année-là, dont la plus considérable se déroula comme il se devait à Delphes, le lieu même où l’Athénien fut déclaré par l’oracle le plus sage des hommes. Que pareil oracle ait jamais été rendu, à vrai dire, c’est ce dont il est permis et (...) dont on ne se pr... (shrink)

Cet article se propose de caractériser le style délibératif qui s'instaure dans la « nouvelle blogosphère citoyenne ». L'ouverture des formats d'énonciation du blog favorise la mobilisation de compétences expressives jusqu'alors refoulées dans les dispositifs de prise de parole publique . Mais les formes de la discussion qui s'opèrent dans les commentaires de blogs contribuent à faire réapparaître les contraintes de la discussion publique et à organiser une forme élargie et enrichie de débat public.This paper proposes to characterize the deliberative (...) style that creates the "new citizen blogosphere." The opening statement of the formats blog promotes the mobilization of previously repressed expressive skills in existing public speaking . But the forms of the discussion taking place in the comments of blogs contribute to reappear the constraints of public discussion and to organize an expanded form and enriched public debate. (shrink)

’Socratic irony’ is often understood in modern scholarship, for instance by Gregory Vlastos, as having a rather favourable sense. It is understood as implying something different from what one says and doing so part of a programme of moral education that consisted in challenging the intellectual powers of his interlocutors. However, this sense of eironeia is not found in Plato or in Aristotle in the texts where he discusses Socratic irony. The term ’irony’ occurs in those texts in a consistently (...) negative sense, associated with contemptuous or arrogant treatment of others . In Aristotle’s Nicomachean Ethics, ’Socratic irony’ may appear to have a more favourable sense; but close attention to the relevant passages, taken in the context of Aristotle’s ethical framework, shows that it signifies a kind of wilful disdain of convention, and is no more favourably understood than the other extreme of alazoneia. If we go back to the Platonic uses of the term, for instance, Thrasymachus in Republic 337a or Callicles in Gorgias 489e, we find again a negative connotation. Here, the relevant sense is that of evading one’s share in the discussion by pretending to have no answer to the questions one poses. In fact, ’evasion’ is, probably, what eironeia, means, understood as a deliberate tactic to get the better of one’s opponents. The more favourable sense of ’Socratic irony’ is, thus, a modern invention, partly based on the more positive usage of the term in Latin, in Cicero and Quintilian. (shrink)

Fairness of Artificial Intelligence decisions has become a big challenge for governments, companies, and societies. We offer a theoretical contribution to consider AI ethics outside of high-level and top-down approaches, based on the distinction between “reality” and “world” from Luc Boltanski. To do so, we provide a new perspective on the debate on AI fairness and show that criticism of ML unfairness is “realist”, in other words, grounded in an already instituted reality based on demographic categories produced by institutions. Second, (...) we show that the limits of “realist” fairness corrections lead to the elaboration of “radical responses” to fairness, that is, responses that radically change the format of data. Third, we show that fairness correction is shifting to a “domination regime” that absorbs criticism, and we provide some theoretical and practical avenues for further development in AI ethics. Using an ad hoc critical space stabilized by reality tests alongside the algorithm, we build a shared responsibility model which is compatible with the radical response to fairness issues. Finally, this paper shows the fundamental contribution of pragmatic sociology theories, insofar as they afford a social and political perspective on AI ethics by giving an active role to material actors such as database formats on ethical debates. In a context where data are increasingly numerous, granular, and behavioral, it is essential to renew our conception of AI ethics on algorithms in order to establish new models of responsibility for companies that take into account changes in the computing paradigm. (shrink)

In our commentary we briefly review the work on the neurological differences between the rational ethical analysis used in professional contexts and the reflexive emotional responses of our daily moral reasoning, and discuss the implications for the claim that our normative arguments should not rely on the emotion of repugnance.

This paper consists in three case studies of modern French philosophers who drew their inspiration from Plato : Emile Chartier, known under his nom de plume Alain, famous as a teacher in the twenties of the last century, and two of his pupils, Simone Petrement and Simone Weil. Great admirer of Plato, Alain taught the survival of his main thoughts through all the philosophical tradition and their agreement with the rationalistic mood of 19th‑20th century philosophy. This implied that these thoughts (...) were stripped of the allegorical or mythological way in which Plato often expresses them. In particular, Plato’s allegory of the cave, one of his core images, turned out in Alain’s interpretation to be a metaphoric description of the difficult ascent of the mind up to scientific or at least rational knowledge. Consequently in this interpretation it was no longer question of any transcendency of the idea of the Good.Petrement and Weil remained faithful to their teacher and therefore to Platonic inspiration. Nevertheless, both of them, although in different ways, have reacted against this exhaustion of transcendence and come into conflict with modern interpretation of Plato. Petrement, even before specialising in the history of Gnosticism, worked out a dualistic system in which truth is absolutely transcendent because, as universal, it is unattainable for any particular mind inasmuch it is a subject’s mind. Truth, therefore, is unattainable throughout this life. On Weil’s part, the interest in Plato took place after a period of left wing militancy, following her discovery of Christianity and some personal experiences of mysticism. Platonism was for her a means of combining her new faith with a properly philosophical, i.e. rationalistic, way of thinking. Of course in this view transcendency was crucial to the idea of Good as much as to that of God. Whether this transcendency is more a matter of faith than of reason is at least uncertain. (shrink)

Le point de départ de cet article est la question de savoir quel con­tenu donner à la prohairesis tou biou qui distingue, selon Aristote (Metaph. Γ, 2, 1004b24-25), la philosophie de la sophistique. Après avoir montré qu’il s’agit du stéréotype conjuguant la définition platonicienne du sophiste comme fabricant de simulacres et la pratique censée être propre aux sophistes, de faire payer leurs leçons, on se demande si, pourquoi et à quelles conditions la pratique et l’ensei­gnement de la philosophie par Socrate (...) et ses successeurs échappaient à cette double caractérisation. (shrink)

In a short section on the semantics of programs within his discussion of program correctness, Primiero seems to endorse the received view on the Scott-Strachey approach to denotational semantics as directly related to correctness. While this is true to some extent, I argue that the mathematical entities associated with programs play a lesser role in reasoning on program correctness, while the mathematical foundations of denotational semantics, namely the theory of domains, have contributed significantly to the conceptual understanding of programming and (...) of computation in general. (shrink)

Continuity is perhaps the most familiar characterization of the finitary character of the operations performed in computation. We sketch the historical and conceptual development of this notion by interpreting it as a unifying theme across three main varieties of semantical theories of programming: denotational, axiomatic and event-based. Our exploration spans the development of this notion from its origins in recursion theory to the forms it takes in the context of the more recent event-based analyses of sequential and concurrent computations, touching (...) upon the relations of continuity with non-determinism. (shrink)

In this paper, we continue the study of the Killing symmetries of a N-dimensional generalized Minkowski space, i.e., a space endowed with a metric tensor, whose coefficients do depend on a set of non-metrical coordinates. We discuss here the translations in such spaces, by confining ourselves to the four-dimensional case. In particular, the results obtained are specialized to the case of a “deformed” Minkowski space \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} $$\widetilde M_4 $$ \end{document}.

SOCRATICA IV est la quatrième, tenue à Buenos Aires en 2018, d’une série de conférences inaugurée en 2005 par Livio Rossetti à Senigallia (Italie) et dont les deux autres éditions eurent lieu à Naples en 2008 et à Trento en 2012. Cette quatrième édition a vu la création de l’International Society for Socratic Studies (ISSS), dont le premier Président est Donald R. Morrison (Rice University). De quatorze en 2005, le nombre d’intervenants est passé à quatre-vingt-deux en 2018. Le revers de (...) ce s... (shrink)

Ce n’est pas tout à fait un hasard si le premier numéro de Philosophie antique est entièrement dédié à Socrate ou, pour être plus prudent, à plusieurs des figures qu’il a prises ou qui lui ont été don­nées au cours de l’histoire. 2001, l’année de naissance du premier périodique français spécialement consacré à la philosophie de l’Anti­quité, est aussi celle du vingt-quatrième centenaire de la mort de Socrate : même si cet événement n’est pas aussi fondateur qu’on s’est parfois plu (...) à le croire... (shrink)

English summary: This commentary of Plato's Euthydemus demonstrates its place as the clearest text for understanding the relationship between Platonism and Sophism. French description: De tous les dialogues de Platon, l'Euthydeme est peut-etre le plus exclusivement consacre a l'elucidation de la relation du platonisme avec la sophistique. Ce qu'on a pris pour indigence de son contenu, c'est l'acuite avec laquelle la forme y est consideree. Formalisme moral de Socrate, formalisme eristique des sophistes: dans la lecon d'eristique donnee a Socrate apparait, (...) plus clairement peut-etre que dans aucun texte antique, la logique propre au discours sophistique, celle-la meme a laquelle a affaire dans sa totalite le texte platonicien. La sophistique, et Platon avec elle, relevent d'un regime de discours pre-aristotelicien, et c'est dans la pratique de ce discours que demande a etre reinscrite la tant galvaudee ironie socratique. (shrink)

In this paper, we continue the study of the Killing symmetries of an N-dimensional generalized Minkowski space, i.e., a space endowed with a metric tensor, whose coefficients do depend on a set of non-metrical coordinates. We discuss here the finite structure of the space–time rotations in such spaces, by confining ourselves to the four-dimensional case. In particular, the results obtained are specialized to the case of a “deformed” Minkowski space M_4, for which we derive the explicit general form of the (...) finite rotations and boosts in different parametric bases. (shrink)

A torsional-antenna and a log-periodic antenna are used as a source and an analyzer, respectively, to investigate the possible anomalies of an electro-magnetic field. An unexpected isotropic signal has been detected using those torsion angles, which correspond to a breakdown of the Local Lorentz Invariance, which was found in the past. This coincidence is interpreted as the recovery of a lost symmetry by torqueing the antenna, thus putting in evidence that this Lorentz violation is of angular nature. Introducing a new (...) physical dimension—not only a mathematical dimension as a way to rearrange some equations—is here proposed as a general rule to recover the lost symmetry. (shrink)

We discuss the possible breakdown of Lorentz invariance—at distances greater than the Planck length—from both the theoretical and the phenomenological point of view. The theoretical tool to deal with such a problem is provided by a “deformation” of the Minkowski metric, with parameters dependent on the energy of the physical system considered. Such a deformed metric realizes, for any interaction, the “solidarity principle” between interactions and spacetime geometry (usually assumed for gravitation), according to which the peculiar features of every interaction (...) determine—locally—its own spacetinie structure. The generalized theory of relativity, based on the locally deformed Minkowski spacetime, is called “deformed special relativity” (DSR). In the first part of the paper, we give the foundations and the basic laws of DSR. In the second part, we analyze some experimental data, which admit an interpretation in terms of the DSR formalism and are, therefore, candidates for displaying a breakdown of the Lorentz symmetry. They are (i) the superluminal propagation of evanescent electromagnetic waves in waveguides, (ii) the meanlife of the KS 0, (iii) the Bose-Einstein correlation in pion production and (iv) the comparison of clock rates in the gravitational field of Earth. Such analysis provides us with the explicit forms of the related deformed metrics as functions of the energy, thus putting in evidence, in all four cases (and therefore for all four fundamental interactions), departures from the usual Minkowski metric. This preliminary evidence for a broken Lorentz invariance may be regarded as the signature of possible nonlocal effects involved in the processes examined. Moreover, the corresponding deformed metrics obtained by our analysis provide an effective dynamical description of the interactions (at least in the energy range considered). (shrink)

Dans les années 1920, la théologie de Barth est centrée sur la thématique de la prédication, à la fois point de départ et point d'impact de sa réflexion. Dieu parle, l'Homme écoute. Notre analyse portera sur la possibilité d'une telle audition croyante de la Parole de Dieu, dont Barth affirme la réalité avec force comme seule issue à l'angoisse existentielle humaine qui étreint ses auditeurs, selon le pasteur de Safenwil, et les pousse à se presser " malgré tout " au (...) pied de sa chaire. Nous essaierons également de déterminer la forme concrète que Barth entend donner à sa prédication, à une époque où il s'agit moins pour lui de prêcher " le texte " que de proclamer la résolution en Christ de la contradiction et de l'interrogation dans lesquelles la présence de Dieu place l'Homme. In the twenties, Barth's theology took its start and found its accomplishment in the question of the proclamation of God's Word. God speaks, Man listens. We shall try here to understand why, according to our author, such a faithful listening is possible. According to Barth it is the only solution of man's existential anguish, which explains why women and men go on coming to listen to the sermon. We shall also try to determine what form Barth gave to this preaching, at a time when he would put Man under the weight of the contradiction and interrogation caused by God's presence, and proclaim how Christ's revelation solves it, rather than explain each word of the biblical text. (shrink)

La « théorie » de la prédication de Barth comme « théologie de la Parole de Dieu » a été remise en question au début des années 60 alors qu’elle était constituée depuis les années 20. Qu’en est-il exactement de cette conception trop peu connue dans son exactitude, en France notamment ? Soucieux de pratique, Barth conçoit d’abord la prédication comme une Theologia viatorum et semble affirmer le caractère divin de la parole de la prédication. Or, la difficulté, voire l’échec, (...) de celle-ci en rappelle le caractère de terrible humanité. Ainsi passe-t-il « d’une attestation indirecte du Christ » dans la prédicaiton de l’église, à une « prédication, service de la parole de Dieu », compte tenu de ce que seul le Christ, en définitive, est Parole de Dieu, et que la charge de prédication appartient à toute la « communauté de témoins ».Barth's « theory » of preaching as « theology of the World of God » was put into question at the beginning of the 60's, although it goes back to the 20’s. What is it exactly about this conception, too little known in its details, especillaly in France ? Concerned with practice, Barth first conceived preaching as a Theologia viatorum and seems to have confirmed the divine character of the preached word. But the difficulty, indeed the failure, of the latter recalls the character of terrible humanity. Thus there evolves from « an indirect attestation of Christ « in the preaching of the Church, to a « preaching service of God’s word », taking into account that only Christ, finally is Word of God, and that the role of preaching belongs to all the « community of witnesses». (shrink)

Résumé Les machines numériques sculptent désormais des objets en référant leurs formes aux flux de données qui jaillissent de l’incessante activité des bases de données du web. Pendant que s’affole le débat sur les risques et les opportunités des big data, d’autres s’affairent à régler les algorithmes destinées à faire « parler » les données. On assiste à un renversement d’une importance énorme dans le champ des sciences sociales, laissant croire que « les chiffres parlent d’eux-mêmes ». Ce que la (...) visualisation des nouvelles traces digitales fait alors voir, c’est que les catégories d’interprétation traditionnelles ne tiennent plus d’elles-mêmes et qu’il faut commencer par regarder avant d’interpréter. (shrink)

Nous n'avons pas choisi d'etre aristoteliciens. Nous ne le sommes pas moins que les autres. Le livre Gamma de la Metaphysique accomplit la relegation de la sophistique qui n'a jamais ete achevee par Platon, en instaurant un regime de discours qui fera loi pour toute l'histoire de la metaphysique. Regime que nous appelons semantique, en reference au geste decisif d'Aristote qui fait equivaloir dire et signifier quelque chose. Il faut et il suffit qu'un sophiste lui dise Bonjour! pour qu'Aristote demontre, (...) que bon gre mal gre, il se place sous la juridiction de ce qu'on appelle depuis lors le principe de non-contradiction. La mise en demeure de parler fait office d'arme absolue, et la decision du sens est le foyer de la science de l'etre en tant qu'etre. Pas d'instauration du principe sans adversaire, donc sans stategie: cela suffit pour jeter le soupcon sur l'impression que donne Gamma d'une evidence definitive. (shrink)

The notion of gender, introduced into France by queens and drags in the late 20th century (the glorious period of the "drag-queens") and revitalized by American "queer", follows a traditionally feminist path where homosexual and particularly male issues are once again being hidden away. Having played a big part in popularizing that first version, Patrick Cardon proposes, in order to avoid any misunderstanding and escape once for all from any attempts at reification, to use the term and the universal notion (...) of transgender, which would cover the deconstructivist notions of queer, post-colonial and cultural studies, in order to give a place intelligently to ALL diversities beyond any binarism and with a foresight of future hybridity. (shrink)