The square of opposition is a diagram related to a theory of oppositions that goes back to Aristotle. Both the diagram and the theory have been discussed throughout the history of logic. Initially, the diagram was employed to present the Aristotelian theory of quantification, but extensions and criticisms of this theory have resulted in various other diagrams. The strength of the theory is that it is at the same time fairly simple and quite rich. The theory of oppositions has recently (...) become a topic of intense interest due to the development of a general geometry of opposition (polygons and polyhedra) with many applications. A congress on the square with an interdisciplinary character has been organized on a regular basis (Montreux 2007, Corsica 2010, Beirut 2012, Vatican 2014, Rapa Nui 2016). The volume at hand is a sequel to two successful books: The Square of Opposition - A General Framework of Cognition, ed. by J.-Y. Béziau & G. Payette, as well as Around and beyond the Square of Opposition, ed. by J.-Y. Béziau & D. Jacquette, and, like those, a collection of selected peer-reviewed papers. The idea of this new volume is to maintain a good equilibrium between history, technical developments and applications. The volume is likely to attract a wide spectrum of readers, mathematicians, philosophers, linguists, psychologists and computer scientists, who may range from undergraduate students to advanced researchers. (shrink)

Faisant suite à celles réalisées en Crète occidentale (BCH 113 [1989], p. 551-580), l'Éphorie des Antiquités d'Hérakleion et l'École française d'Athènes ont mené en collaboration en 1989 des recherches sur les ateliers de fabrication d'amphores de Crète centrale, dont l'activité s'échelonne entre l'époque hellénistique et l'époque impériale. On a ainsi localisé de nouveaux ateliers et réexaminé des ateliers déjà connus à Hérakleion, Chersonisos, Tsoutsouros (Inatos), Kératokambos et Dermatos. L'étude typologique permet d'affirmer que différents types d'amphores pouvaient être fabriqués dans le (...) même atelier. On a identifié trois nouveaux types, qui ont coexisté en Crète centrale avec tous les autres types déjà connus. L'étude concerne également d'autres productions des mêmes ateliers (vases, tuiles, etc.) et aborde quelques aspects techniques (supports de vases, ratés de cuisson, parois vitrifiées de fours). (shrink)

This special issue of Logica Universalis (Springer) deals with the relations between logic and religion, broadly conceived. It contains the following articles: Logic and Religion, by Jean-Yves Beziau and Ricardo Silvestre; Thinking Negation in Early Hinduism and Classical Indian Philosophy, by Purushottama Bilimoria; Karma Theory, Determinism, Fatalism and Freedom of Will, by Ricardo Sousa Silvestre; From Logic in Islam to Islamic Logic, by Musa Akrami; Leibniz’s Ontological Proof of the Existence of God and the Problem of Impossible Objects, (...) by Wolfgang Lenzen; A Logical Analysis of the Anselm’s Unum Argumentum (from Proslogion), by Jean-Pierre Desclés; Monotonic and Non-monotonic Embeddings of Anselm’s Proof, by Jacob Archambault; Computer-Assisted Analysis of the Anderson–Hájek Ontological Controversy, by C. Benzmüller, L. Weber and B. Woltzenlogel Paleo. (shrink)

This paper introduces the special issue on Logic and Religion of the journal Logica Universalis (Springer). The issue contains the following articles: Logic and Religion, by Jean-Yves Beziau and Ricardo Silvestre; Thinking Negation in Early Hinduism and Classical Indian Philosophy, by Purushottama Bilimoria; Karma Theory, Determinism, Fatalism and Freedom of Will, by Ricardo Sousa Silvestre; From Logic in Islam to Islamic Logic, by Musa Akrami; Leibniz’s Ontological Proof of the Existence of God and the Problem of Impossible Objects, (...) by Wolfgang Lenzen; A Logical Analysis of the Anselm’s Unum Argumentum (from Proslogion), by Jean-Pierre Desclés; Monotonic and Non-monotonic Embeddings of Anselm’s Proof, by Jacob Archambault; Computer-Assisted Analysis of the Anderson–Hájek Ontological Controversy, by C. Benzmüller, L. Weber and B. Woltzenlogel Paleo. (shrink)

Young children have difficulties writing argumentative texts which contain well-linked arguments and counterarguments even though they are capable of arguing by oral. Two main explanations have been provided to account for those difficulties: a) The writer has to manage alone two different points of view, whereas each of the two (or more) speakers can take charge of one of the points of view. b) The inability of young children to attribute an argumentative valence to statements.In order to improve the ability (...) of 8-year-old writers (skilled or less skilled) to manage the dialogical dimension of the argumentative text, two types of aids were tested. 1) A collaborative writing in which the children worked in twos to recompose an experimental argumentation. 2) A classification task was presented before the text recomposition task. The results show that 8-year-old children are capable of processing the argumentative valence of statements. However, only skilled writers take advantage of the two types of aids to compose a text comparable to the standard argumentative schema. (shrink)

We define and examine a notion of logical friendliness, which is a broadening of the familiar notion of classical consequence. The concept is tudied first in its simplest form, and then in a syntax-independent version, which we call sympathy. We also draw attention to the surprising number of familiar notions and operations with which it makes contact, providing a new light in which they may be seen.

Jean-Jacques Rousseau est l'auteur de l'entrée "économie politique" dans l'Encyclopédie en 1755. A ce titre, il aurait pu être l'un des fondateurs de cette discipline. Pourtant, la définition qu'il en donne est à l'encontre de la pensée libérale des physiocrates, puis des classiques, et constitue une véritable "anti-économique". En hypertrophiant le rôle de l'Etat et en niant l'intérêt personnel, Rousseau est au contraire l'un des pères du socialsme. En niant la liberté humaine, il nie aussi l'existence de choix éthiques.

Cet ouvrage regroupe plusieurs textes centrés sur les questions cardinales de la philosophie de Merleau-Ponty, de ses premières à ses dernières oeuvres, en particulier : les questions de l'incarnation, de l'expression, de la peinture, de la vision et bien sûr du style. L'analyse est donc plutôt orientée du côté de l'esthétique et des rapports existant entre philosophie et non-philosophie. Merleau-Ponty a donné toute son importance au silence de la peinture pour tenter de comprendre la dimension du langage et de l'expression.

Jean-Yves Béziau Abstract In this paper I relate the story about the new rising of the square of opposition: how I got in touch with it and started to develop new ideas and to organize world congresses on the topic with subsequent publications.

Jean-Yves Le Naour et Catherine Valenti proposent un ouvrage ambitieux par son propos : faire une histoire de l'avortement depuis le milieu du XIXe jusqu'à la fin du XXe siècle. Entreprise ambitieuse mais nécessaire, une telle synthèse étant inédite en France. L'idée force du livre tient donc dans sa longue durée : un siècle et demi durant lequel la question de l'avortement fut au centre de débats tant politiques, que juridiques, économiques et sociaux. Le problème est pris à (...) bras le c... (shrink)

Jean-Yves Strasser The Olympia of Alexandria and the Pancratiast M. Aur. Asklepiades p.421-468 The Alexandrian Olympia are known thanks to inscriptions and especially papyri. The latter mention the olympionikoi, who may have been victors not in the great competition at Pisa, but in the Olympia of the Egyptian city. These competitions, created under Marcus Aurelius, became eiselastikoi under Gallien; they were first celebrated in 268. Like the majority of the great competitions in Egypt, they took place in the (...) winter of even years divisible by four. That was the case already in the 2nd century AD: the first Olympia were organised in 180. In 200, at the time of the sixth celebration, the periodonikes M. Aur. Asklepiades won the Olympia pancration in the presence of Septimius Severus and Caracalla. An inscription at Coptus (I. Portes 88) mentions a hellanodikes of Alexandria: he could have been serving at the time of the seventeenth Olympiad in 244; in 246-247 he had a statue of Sarapis Polieus erected under the prefect of Egypt Valerius Firmus. (shrink)

The hexagon of opposition is an improvement of the square of opposition due to Robert Blanché. After a short presentation of the square and its various interpretations, we discuss two important problems related with the square: the problem of the I-corner and the problem of the O-corner. The meaning of the notion described by the I-corner does not correspond to the name used for it. In the case of the O-corner, the problem is not a wrong-name problem but a no-name (...) problem and it is not clear what is the intuitive notion corresponding to it. We explain then that the triangle of contrariety proposed by different people such as Vasiliev and Jespersen solves these problems, but that we don’t need to reject the square. It can be reconstructed from this triangle of contrariety, by considering a dual triangle of subcontrariety. This is the main idea of Blanché’s hexagon. We then give different examples of hexagons to show how this framework can be useful to conceptual analysis in many different fields such as economy, music, semiotics, identity theory, philosophy, metalogic and the metatheory of the hexagon itself. We finish by discussing the abstract structure of the hexagon and by showing how we can swing from sense to non-sense thinking with the hexagon. (shrink)

In this article Schrijvers elaborates on the work of Jean-Yves Lacoste. In Expérience et Absolu , this French phenomenologist and theologian coins the ‘liturgic experience’. Such an experience is conceived of as a correction to the Heideggerian picture of finitude. While for Heidegger Dasein is a being towards the future and, most importantly, towards his own death, Lacoste wants to warrant the present as an area of meaning and sense. One such example is the liturgic experience, in which (...) the faithful undergo the nearness of God in the present. However, this experience must sharply be distinguished from the ‘religious experience’ as it is known in the works of Otto and Schleiermacher. The liturgic experience is the confrontation with the Christian God who does not appear objectively. Therefore the liturgic experience is a nonexperience. It is a brutal conversion of the believer to the image of Christ, who on the Cross had no experience of God whatsoever. Liturgy connotates a violent rupture with the world, and the experiences therein. In later works, Schrijvers contends, Lacoste corrects this Barthian scheme of liturgy: attention is now paid to the work of art as well as to the experience of resting as examples of an analogous rupture with Heideggers ‘being-in-the-world’. These experiences give back the Christian ‘being there’ its human character and recognizability: faith can be elucidated from the ruptures brought forth by the work of art and with the experience of resting in mind. The reflections on art are accompanied by an ontology of affectivity. ‘Older’ than the Heideggerian ‘world’ or ‘earth’ is our free and affective response to reality. This affective response is so rich that ‘being’ cannot and may not be reduced to Heidegger’s options: in between world and earth one encounters an open and indeterminate space that points to the irreducibility of being to its Heideggerian features. The experience of the work of art and liturgy, and their respective joyful present, can thus be given ontological weight. To conclude, Schrijvers examines I. Verhacks critical review of Lacostes book. The author tries to show that the Barthian scheme of liturgy is not solely due to the lack of a philosophical elucidation of the liturgic ‘being there’, as Verhack argues, but also, and foremost, to the lack of relation between God and world. This will be the occasion to conceive of the religious person as protesting against the Absolute. Is not the non-experience of liturgy the consequence of an ontotheological conception of the desire of God, and is it possible to understand theologically the protest against and refusal of one’s own non-experience as an unredeemedness? (shrink)

This essay offers a commentary of Jean-Yves Lacoste’s most recent book Théses sur le vrai. It does so through a close reading of the book’s main arguments and through relating this most recent work to Lacoste’s earlier thinking. Lacoste here offers a new introduction to his body of work by elaborating on the phenomenological experience of truth. Truth, Lacoste argues, is first and foremost experienced in experiences of newness and in experiences offered through poetry. These experiences show and (...) manifest the truth as “unexpected.” Such a surprise, for Lacoste, can be read as a secular translation of what theology calls the “good news.” The book concludes with new insights in Lacoste’s thinking of the relation between philosophy and theology. (shrink)

This text is an outgrowth of notes prepared by J. Y. Girard for a course at the University of Paris VII. It deals with the mathematical background of the application to computer science of aspects of logic (namely the correspondence between proposition & types). Combined with the conceptual perspectives of Girard's ideas, this sheds light on both the traditional logic material & its prospective applications to computer science. The book covers a very active & exciting research area, & it will (...) be essential reading for all those working in logic & computer science. (shrink)

Jean-Yves Leloup nous propose ici deux lectures magistrales de deux géants de la culture occidentale : Nietzsche, l'athée et Maître Eckhart, le théologien-mystique. Il tente de remettre "à l'endroit" un texte de Nietzsche, Ecce Homo, souvent cité pour justifier tous les athéismes. Leloup montre que le Dieu en lequel Nietzsche voyait une "antithèse de la vie" n'a rien à voir avec le Dieu des Evangiles qui est au contraire une puissance de vie et de libération, une claire lumière (...) par laquelle le monde est vu. L'auteur, avec Maître Eckhart, nous entraîne ensuite au-delà des contraires, au-delà même de Dieu et de tous les Absolus que nous imaginons, vers notre essentielle et silencieuse liberté... Ce livre délicieux et audacieux nous montre, comme le disait Pascal, que "l'athéisme est une marque de force d'esprit, mais jusqu'à un certain degré seulement". (shrink)

Dans un texte désormais célèbre, Ferdinand de Saussure insiste sur l’arbitraire du signe dont il vante les qualités. Toutefois il s’avère que le symbole, signe non arbitraire, dans la mesure où il existe un rapport entre ce qui représente et ce qui est représenté, joue un rôle fondamental dans la plupart des activités humaines, qu’elles soient scientifiques, artistiques ou religieuses. C’est cette dimension symbolique, sa portée, son fonctionnement et sa signification dans des domaines aussi variés que la chimie, la théologie, (...) les mathématiques, le code de la route et bien d’autres qui est l’objet du livre La Pointure du symbole. -/- Jean-Yves Béziau, franco-suisse, est docteur en logique mathématique et docteur en philosophie. Il a poursuivi des recherches en France, au Brésil, en Suisse, aux États-Unis (UCLA et Stanford), en Pologne et développé la logique universelle. Éditeur-en-chef de la revue Logica Universalis et de la collection Studies in Universal Logic (Springer), il est actuellement professeur à l’Université Fédérale de Rio de Janeiro et membre de l’Académie brésilienne de Philosophie. SOMMAIRE -/- PRÉFACE L’arbitraire du signe face à la puissance du symbole Jean-Yves BÉZIAU La logique et la théorie de la notation (sémiotique) de Peirce (Traduit de l’anglais par Jean-Marie Chevalier) Irving H. ANELLIS Langage symbolique de Genèse 2-3 Lytta BASSET -/- Mécanique quantique : quelle réalité derrière les symboles ? Hans BECK -/- Quels langages et images pour représenter le corps humain ? Sarah CARVALLO Des jeux symboliques aux rituels collectifs. Quelques apports de la psychologie du développement à l’étude du symbolisme Fabrice CLÉMENT Les panneaux de signalisation (Traduit de l’anglais par Fabien Shang) Robert DEWAR Remarques sur l’émergence des activités symboliques Jean LASSÈGUE Les illustrations du "Songe de Poliphile" (1499). Notule sur les hiéroglyphes de Francesca Colonna Pierre-Alain MARIAUX Signes de vie Jeremy NARBY Visualising relations in society and economics. Otto Neuraths Isotype-method against the background of his economic thought Elisabeth NEMETH Algèbre et logique symboliques : arbitraire du signe et langage formel Marie-José DURAND – Amirouche MOKTEFI Les symboles mathématiques, signes du Ciel Jean-Claude PONT La mathématique : un langage mathématique ? Alain M. ROBERT. (shrink)

Using methods of abstract logic and the theory of valuation, we prove that there is no paraconsistent negation obeying the law of double negation and such that $\neg(a\wedge\neg a)$ is a theorem which can be algebraized by a technique similar to the Tarski-Lindenbaum technique.

We present a paraconsistent logic, called Z, based on an intuitive possible worlds semantics, in which the replacement theorem holds. We show how to axiomatize this logic and prove the completeness theorem.

(4) Jean apprécie ce livre-là. (‘Jean appreciates ce book-there’) (5) Jean apprécie ce livre-ci. (‘Jean appreciates ce book-here’) in a way that recalls in part non-standard English: (6) John is reading that there book. (7) John is reading this here book. with (6) akin to (4) and with (7) akin to (5). The difference in word order, whereby English has there/here prenominal in (6)/(7) and French has - là/-ci postnominal in (4)/(5), was analyzed by Bernstein (1997) (...) in terms of a movement operation that in French moves the noun to the left of -là/-ci, starting from an English-like order, in a way that recalls the difference between French and English adjective position, as in Cinque (2005; to appear). English allows that and this to occur without any visible noun present, as in. (shrink)

This paper introduces the special issue on Formal Approaches to the Ontological Argument of the Journal of Applied Logics (College Publications). The issue contains the following articles: Formal Approaches to the Ontological Argument, by Ricardo Sousa Silvestre and Jean-Yves Béziau; A Brief Critical Introduction to the Ontological Argument and its Formalization: Anselm, Gaunilo, Descartes, Leibniz and Kant, by Ricardo Sousa Silvestre; A Mechanically Assisted Examination of Begging the Question in Anselm’s Ontological Argument, by John Rushby; A Tractarian Resolution (...) to the Ontological Argument, by Erik Thomsen; On Kant’s Hidden Ambivalence Toward Existential Generalization in his Critique of the Ontological Argument, by Giovanni Mion; The Totality of Predicates and the Possibility of the Most Real Being, by Srećko Kovač; An Even More Leibnizian Version of Gödel’s Ontological Argument, by Kordula Świętorzecka and Marcin Łyczak; A Case Study On Computational Hermeneutics: E. J. Lowe’s Modal Ontological Argument, by David Fuenmayor. (shrink)

Le débat sur le travail le dimanche a tout une histoire en France, il renaît régulièrement et fait réémerger diverses questions dont plusieurs sont abordées dans cet ouvrage : le travail le dimanche, nécessité ou caprice? Quel est l’effet sur le volume de l’emploi? Quel est l’effet sur l’activité d’une ville? Et question fondamentale, aussi, sur qui faire peser ces heures « asociales »? Ce ne sont là que quelques questions que fait émerger la question du t...

Journal of Chinese Philosophy, EarlyView.

This paper aims to shed new light on Hegel’s rather problematic statements about Asian thinking and Chinese philosophy by disclosing the Orientalist antecedents found in Kant’s anthropological works. First, the notion of Orientalism will be defined with reference to Orientalism and “Orientalism Reconsidered” by Edward Said. Second, an exploration of Kant’s anthropological research will show that this constituted the turning point in the Western Orientalist perception of China which had a strong influence on Hegel Finally, it will be claimed that (...) Hegel’s Orientalist perception of China rests on a definition of culture as the expression of the “spirit of a people” that has recently been revised by contemporary post-colonial anthropologists. (shrink)

Le but de cet article est, à travers l’histoire des relations entre science et philosophie du temps, de retracer l’archéologie épistémologique du temps pensé comme progrès linéaire. Nous voudrions montrer : 1. que la pensée du « temps » évolue avec le temps, 2. que cette évolution peut se lire en même temps en science et en philosophie sans qu’il soit nécessaire d opposer l’une à l’autre, 3. qu’elle n’est pas réductible à une opposition entre réversibilité ou irréversibilité ; 4. (...) qu’elle s’exprime à travers trois « métaphores épistémiques » distinctes : cercle, ligne ou réseau — à l’intérieur desquels l’antinomie entre conception « idéaliste » ou « réaliste » de la temporalité ne cesse de se rejouer ; 5. qu’il est possible de dépasser cette antinomie par l’idée régulatrice d’une fonction cosmologique de la temporalité définie comme la forme de l’interaction entre événements physiques et lois naturelles. (shrink)

Despite its wealth and economic performances, Western Europe is anxious about its future and unable to solve its main problem: unemployment. Its great project is the building or Europe. But many questions have no real answers: how can we avoid social fractures? is globalisation and internationalisation a risk or chance? how should we fight corruption? Europe should be the best answer to those questions. But it depends on the answers to new questions: what are the social values on which we (...) want to build the European society of the next century. Eastern Europe is still poor. But the questions are the same and people are confronted with the same problems. Our common challenge is to build a society for the future. And for the first time of our long history, we have no model. We have to invent it. Firms and managers from Hungary and Eastern Europe have to bring their contribution and promote values and virtues as a major factor of the building of our common Europe. (shrink)

La conversion de la France à une politique de « réduction des risques » , est généralement interprétée comme l’indice d’un changement de paradigme en matière de toxicomanie. Il est néanmoins possible de la voir comme une forme de réagencement politique du monde des consommations de drogues, visant à définir de nouveaux seuils, les plus bas possibles, pour l’entrée dans des dispositifs de soin et de service. L’examen des visions du monde sur lesquelles reposent ces équipements politiques, en France comme (...) dans le reste de l’Union européenne, montre d’ailleurs que la vision du monde autonomiste y compose avec d’autres, compensatoires et additives, plus anciennement implantées. C’est sans doute pourquoi on retrouve, à divers niveaux, un véritable décalage entre les mesures volontaristes liées à ces politiques publiques et les contextes dans lesquels elles sont mises en œuvre : qu’il s’agisse des promoteurs, professionnels ou amateurs, ou qu’il s’agisse des destinataires, tout le monde semble s’accommoder d’un fonctionnement minimal de ces dispositifs, vérifiant ainsi une fois de plus la force des liens faibles.The French turn to the so-called « risk reduction policy » , is generally interpreted as a shift of the paradigm of drug addiction policies. One can, nevertheless, see it as a kind of new political layout of the drug addiction field, intended to define new thresholds for one’s entering in the treatment and care devices. When we examine the worldviews which sustain these political equipments , we can see that the autonomist worldview has to come to terms with others, namely : the compensatory and additive ones. That is probably why we can see, at various levels, a real discrepancy between the strong willings supporting the actions promoted by the risk reduction policies, and the contexts in which they take place : would it be the main actors , or the beneficiaries, everyone seems to be satisfied with a minimal functioning of these devices, verifying once again the strength of the weak ties. (shrink)