Looking for new mathematical concepts for the material world

in Logique et Analyse (2011), 54(213), 211-224

Read in December 1905 at the Royal Society of London, Alfred North Whitehead’s memoir “On mathematical concepts of the material world” is not only, according to Whitehead’s own retrospective assessment ... [more ▼]

Read in December 1905 at the Royal Society of London, Alfred North Whitehead’s memoir “On mathematical concepts of the material world” is not only, according to Whitehead’s own retrospective assessment, “the most original thing that he had done”; it also provides very interesting clues to understand Whitehead’s contemporary collaboration with Bertrand Russell, as well as his later philosophical – epistemological and metaphysical – work. [less ▲]

Foreword

in Logique et Analyse (2011), 54(214), 125-126

Rhétorique de l'idéographie

in Nouveaux Actes Sémiotiques (2011), 114

Catégories sémantiques et catégories syntaxiques. Relecture critique des Recherches logiques par la philosophie analytique

in Dewalque, Arnaud; Leclercq, Bruno; Seron, Denis (Eds.) La théorie des catégories. Entre logique et ontologie (2011)

Logiques intensionnelles (Carnap, Kripke, Routley)

Scientific conference (2010, May 24)

Concepts d'invidus et objets intentionnels

Conference (2010, February 10)

Logical analysis and its ontological consequences : Rise, fall and resurgence of intensional objects in contemporary philosophy

in Petrov, Vesselin (Ed.) Ontological landscapes. Recent thought on conceptual interfaces between science and philosophy (2010)

The aim of this paper will be to show how significant the logical theories of judgement which were worked out at the end of the nineteenth century have been for the ontological thought during the ... [more ▼]

The aim of this paper will be to show how significant the logical theories of judgement which were worked out at the end of the nineteenth century have been for the ontological thought during the twentieth century. Against the classical - Aristotelian and Scholastic - analysis of predicative judgement, Franz Brentano on one hand and Gottlob Frege on the other hand have leveled two different criticisms, which then generated two radically divergent ontological paradigms. On one side, despite Brentano’s own nominalistic stands, there was a tremendous extension of the general category of “object” as well as of the notion of “being” with, as a consequence, the exceptionnally luxuriant ontologies of Brentano’s heirs. On the other side, notwithstanding Frege’s own Platonistic affinities, there was a drastic deflation of the realm of objects to the benefit of the realm of concepts taken as classifying functions, and therefore a strong nominalistic trend among Frege’s heirs. The development of quantified modal logics at the middle of twentieth century however forced contemporary ontology to reconsider this simple alternative in order to give place to some hybrid entities such as individual concepts or other kinds of “intensional objects”. [less ▲]

Quand c'est l'intension qui compte. Opacité référentielle et objectivité

in Bulletin d'Analyse Phénoménologique (2010), 6(8), 83-108

Reconsidering the alternative between the referentialist and the semantical paradigms in contemporary philosophy

Conference (2009, June 18)

What is it like to be a bat ? La phénoménologie à la troisième personne de Wittgenstein à Dennett

in Bulletin d'Analyse Phénoménologique (2009), 6(2), 278-312