Argumentation et engagement ontologique de l’acte intentionnel : Pour une réflexion critique sur l’identité dans les logiques intentionnelles explicites

Abstract : Intentionality is that faculty of human mind whereby it is directed towards objects of all kinds. It is recorded linguistically in verbs such as "to know", "to believe", "to fear", "to hope". Intentional statements such as "John thinks that Nosferatu is a vampire" or "Oedipus loves Jocasta" challenge classical logical laws such as existential generalization or substitution of identical. I propose here an analysis grounded on explicit intentional logics, i. e. logics in which languages are enriched by means of specific operators expressing intentionality. Some original aspects of the meanings of intentional statements are grasped within argumentative practices, more specifically in the context of dialogical logic. I focus more specifically on fictionality, a paradigm in which logical, linguistic and metaphysical considerations are naturally embedded. I defend an artifactual theory in which existence and identity criteria for fictional entities are defined by means of the notion of ontological dependence relation. That notion faces several difficulties overcome here in a modal-Temporal semantics in which an innovating approach to the artifactual diemnsion of fiction is defended. Ultimately, a combination of that theory to a semantic for the fictionality operator is suggested. This enable us to articulate external and internal viewpoints on fictionality.
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Matthieu Fontaine. Argumentation et engagement ontologique de l’acte intentionnel : Pour une réflexion critique sur l’identité dans les logiques intentionnelles explicites. Philosophie. Université Charles de Gaulle - Lille III, 2013. Français. ⟨NNT : 2013LIL30025⟩. ⟨tel-01137248⟩

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