• Editorial
    Philosophia Scientiae 9 (2): 1-3. 2005.
    Le présent cahier thématique de Philosophia Scientiae reprend une sélection de conférences présentées à Nancy en octobre 2002 dans le cadre du colloque international “Philosophical Insights into Logic and Mathematics” (PILM). Outre les travaux historiques, la vingtaine de contributions rassemblées dans ce numéro offre un bon aperçu de la richesse des positions hétérodoxes défendues en matière de fondements : théorie des catégories, théorie des jeux, fondements cognitifs, approche de la tradit...
  •  5
    La philosophie en Pologne: 1918-1939 (edited book)
    Librairie philosophique J. Vrin. 2006.
    Ouvrage consacré aux différents auteurs et aspects de la philosophie polonaise du début du XXe siècle, mettant en évidence les innovations de ce courant de pensée issu du cercle de Vienne.
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    Preface
    Philosophia Scientiae 12 (1): 1-5. 2008.
    The fundamental question of Metaphysics is “What is reality?” And the most fundamental question about this fundamental question is “Can we answer this question?” Full realists think we can. They are convinced that the world is independent of our minds and that we can know it as it is independently of us. Half realists think that the world is independent of us (onto-logical realism), but that we cannot know it as it is independently of our minds (epistemological anti-realism). Full anti-realis...
  •  89
    Between de dicto and de re: De objecto attitudes
    Philosophical Quarterly 61 (245): 828-838. 2011.
    Hintikka's second generation epistemic logic introduces a syntactic device allowing to express independence relations between certain logical constants. De re knowledge attributions can be reformulated in terms of quantifier independence, but the reformulation does not extend to non-factive attitudes like belief. There, formulae with independent quantifiers serve to express a new type of attitude, intermediate between de dicto and de re, called ‘de objecto’: in each possible world compatible wit…Read more
  • Editorial
    Philosophia Scientiae 9 (2): 1-3. 2005.
    Le présent cahier thématique de Philosophia Scientiae reprend une sélection de conférences présentées à Nancy en octobre 2002 dans le cadre du colloque international “Philosophical Insights into Logic and Mathematics” (PILM). Outre les travaux historiques, la vingtaine de contributions rassemblées dans ce numéro offre un bon aperçu de la richesse des positions hétérodoxes défendues en matière de fondements : théorie des catégories, théorie des jeux, fondements cognitifs, approche de la tradit...
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    Can epistemic logic state anything interesting about the epistemology of mathematics? That's one of Jaakko Hintikka’s claims. Hintikka was not only the founder of modal epistemic logic (1962), since he also worked on the foundations of mathematics (1996). Using what he calls "second generation" epistemic logic (2003), i.e. independence-friendly (IF) epistemic logic, Hintikka revisits the epistemology of mathematics, and in particular the debate between classical and intuitionistic mathematics (2…Read more
  •  1
    The purpose of this talk is to reassert the philosophical significance that the DEL notion of an announcement may have, by (1) drawing an epistemologically motivated double distinction a. between "assertions" and "announcements" on the one hand, b. "public" and "private announcements" on the other hand, by (2) bringing it to bear on two "Moorean Puzzles" - Moore's Paradox and Moore's Proof - that we propose to revisit, thereby (3) contributing to grounding the logic of announcements in the philo…Read more
  •  6
    Contextualism and the Factivity of Knowledge
    In D. Lukasiewicz & R. Pouivet (eds.), Scientific Knowledge and Common Knowledge, . pp. 209-224. 2009.
    The present paper defines two versions of contextualism about "know": "normal-indexical" contextualism, and "monster-indexical" contextualism. We argue that the former yields counterintuitive results, while the latter entails the rejection of the factivity of knowledge. We conclude that neither of them can properly account for the notion of knowledge.
  •  5
    Discourse Coherence—From Psychology to Linguistics and Back Again
    with Maxime Amblard and Michel Musiol
    In Maxime Amblard, Michel Musiol & Manuel Rebuschi (eds.), (In)Coherence of Discourse: Formal and Conceptual Issues of Language, Springer Verlag. pp. 1-17. 2021.
    The present volume explores recent advances in modeling discourse processes, particularly new approaches aimed at understanding pathological language behavior specific to schizophrenia.
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    (In)Coherence of Discourse: Formal and Conceptual Issues of Language (edited book)
    with Maxime Amblard and Michel Musiol
    Springer Verlag. 2021.
    This present book explores recent advances in modeling discourse processes, in particular, new approaches aimed at understanding pathological language behavior specific to schizophrenia. The contributors examine the modeling paradigm of formal semantics, which falls within the scope of both linguistics and logic while providing overlapping links with other fields such as philosophy of language and cognitive psychology. This book is based on results presented during the series of workshops on Coh…Read more
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    Interdisciplinary Works in Logic, Epistemology, Psychology and Linguistics: Dialogue, Rationality, and Formalism (edited book)
    with Gerhard Heinzmann Martine Batt, Michel Musiol Franck Lihoreau, and Alain Trognon
    Springer. 2014.
    This book presents comparisons of recent accounts in the formalization of natural language with informal conceptions of interaction that have been developed in both psychology and epistemology. There are four parts which explore: historical and systematic studies; the formalization of context in epistemology; the formalization of reasoning in interactive contexts in psychology; the formalization of pathological conversations. Part one discusses the Erlangen School, which proposed a logical analy…Read more
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    Czeżowski's Axiological Concepts as Full-Fledged Modalities
    Forum Philosophicum: International Journal for Philosophy 13 (1): 103-110. 2008.
    This short paper provides a tentative formalization of Czeżowski's ideas about axiological concepts: Good and Evil are conceived of as modalities rather than as predicates. A natural account of the resulting “ethical logic” appears to be very close to standard deontic logic. If one does not resolve to become an antirealist regarding moral values, a possible way out is to become a revisionist about deontology: convert to intuitionism or some other kind of revisionism in deontic logic, and remain …Read more
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    International audience.
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    Construction: A Festschrift for Gerhard Heinzmann (edited book)
    with Pierre Edouard Bour and Laurent Rollet
    King's College Publications. 2010.
    This Festschrift is published on the occasion of Gerhard Heinzmann's 60th birthday. Its title "Construction" refers to Heinzmann's philosophical options, as well as to his exceptional involvement in the building of many scientific enterprises and new scientific institutions. Sixty authors contributed to the volume, and the gathered essays witness the various centers of interest and intellectual achievements of Heinzmann. They are organised in five sections: Henri Poincare; History and Philosophy…Read more
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    RÉSUMÉ : Les attitudes de se sont généralement considérées comme constituant une classe particulière d’attitudes de re . Cet article propose une analyse différente, qui s’appuie sur la notion d’attitude de objecto et qui évite un engagement ontologique envers le sujet. La proposition élabore l’idée de Hintikka d’une logique épistémique dite de seconde génération, qui introduit un marqueur syntaxique permettant d’exprimer des relations d’indépendance entre certaines constantes logiques. De cette …Read more
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    RÉSUMÉ : Les attitudes de se sont généralement considérées comme constituant une classe particulière d’attitudes de re. Cet article propose une analyse différente, qui s’appuie sur la notion d’attitude de objecto et qui évite un engagement ontologique envers le sujet. La proposition élabore l’idée de Hintikka d’une logique épistémique dite de seconde génération, qui introduit un marqueur syntaxique permettant d’exprimer des relations d’indépendance entre certaines constantes logiques. De cette s…Read more
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    In this paper we argue that standard, indexical contextualism about "knows" is unable to account for the factivity of this epistemic expression.
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    Sur le paradoxe dit «de Burali-Forti»
    Philosophia Scientiae 1 (1): 111-124. 1996.
    L'historiographie des paradoxes ensemblistes attribue classiquement la "découverte" du paradoxe du plus grand ordinal au mathématicien italien Burali-Forti. Un examen attentif de ses démonstration et revirement révèle qu'il n'en est rien. Nous tenterons de dégager l'impact de la publication des Principles de Russell sur la constitution de cette version historiographique officielle, avant d'aborder la question de la définition des paradoxes et ce qui peut en motiver une conception restrictive.
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    Extended Game-Theoretical Semantics
    In Majda Trobok Nenad Miščević & Berislav Žarnić (eds.), Between Logic and Reality, Springer. pp. 161--182. 2012.
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    Les principes des mathématiques revisités
    with Jaakko Hintikka
    Librairie Philosophique Vrin. 2007.
    Ce titre marque l'ambition d'un renouvellement des fondements de la logique et des mathématiques un siècle après l'âge d'or du logicisme. L'auteur dispose pour cela de moyens nouveaux, la sématique des jeux et la logique faite pour l'indépendance, qu'il a développés depuis les années 1980.
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    Modalités aléthiques et modalités épistémiques chez Hintikka
    Revue Internationale de Philosophie 250 (4): 395-404. 2009.
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    About Games and Substitution
    In Jaroslav Peregrin (ed.), Meaning: The Dynamic Turn, Elsevier Science. pp. 241--257. 2003.
    Kripke’s substitutional interpretation of quantifiers is usually said to be unsatisfactory for independence-friendly (IF) languages. The purpose of this paper is to question this claim. Two accounts of substitutional semantics for IF sentences will be written down, and the objection of the so-called ‘dummy variables’ will be ruled out. Moreover, it will be argued, against the traditional view, that Game-Theoretical Semantics (GTS) should be con…Read more
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    IF and Epistemic Action Logic
    In Johan van Benthem, Gerhard Heinzman, M. Rebushi & H. Visser (eds.), The Age of Alternative Logics, Springer. pp. 261--281. 2006.
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    Epistemology, Context, and Formalism (edited book)
    Springer Verlag. 2014.
    Acknowledgements Five out of the 13 contributions to this volume originate from papers which were presented at the international workshop on “Epistemology, Context, Formalism” held at the MSH-Lorraine in Nancy, France, on November the ...
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    Qu’est-ce que la signification?
    Librairie Philosophique Vrin. 2008.
    Quand nous utilisons le langage, nous nous appuyons sur le fait que les expressions linguistiques ont une signification. Comment cela fonctionne-t-il? La signification se reduit-elle a l'information? Y a-t-il un intermediaire entre le langage et le monde? Les significations sont-elles dans la tete? Ces questions sont abordees en partant des conceptions heritees de Frege et de Russell jusqu'a la semantique bidimensionnelle de Chalmers, en passant par les debats sur la reference des noms propres e…Read more
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    Czeżowski's axiological concepts as full-fledged modalities
    Forum Philosophicum: International Journal for Philosophy 13 (1): 103-110. 2008.
    This short note provides a tentative formalization of Czeżowski's ideas about axiological concepts: Good and Evil are conceived of as modalities rather than as predicates. A natural account of the resulting “ethical logic” appears to be very close to standard deontic logic. If one does not resolve to become an antirealist regarding moral values, a possible way out is to become a revisionist about deontology: convert to intuitionism or other kind of revisionism for deontic logic, and remain class…Read more
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    Implicit Versus Explicit Knowledge in Dialogical Logic
    In Ondrej Majer, Ahti-Veikko Pietarinen & Tero Tulenheimo (eds.), Games: Unifying Logic, Language, and Philosophy, Springer Verlag. pp. 229--246. 2009.
    A dialogical version of (modal) epistemic logic is outlined, with an intuitionistic variant. Another version of dialogical epistemic logic is then provided by means of the S4 mapping of intuitionistic logic. Both systems cast new light on the relationship between intuitionism, modal logic and dialogical games.