Contextual Epistemic Logic

Manuel Rebuschi (1, 2) , Franck Lihoreau (1, 2)

1 LHSP - Laboratoire d'Histoire des Sciences et de Philosophie - Archives Henri Poincaré
2 MSH Lorraine - Maison des Sciences de l'Homme Lorraine

One of the highlights of recent informal epistemology is its growing theoretical emphasis upon various notions of context. The present paper addresses the connections between knowledge and context within a formal approach. To this end, a "contextual epistemic logic", CEL, is proposed, which consists of an extension of standard S5 epistemic modal logic with appropriate reduction axioms to deal with an extra contextual operator. We describe the axiomatics and supply both a Kripkean and a dialogical semantics for CEL. An illustration of how it may fruitfully be applied to informal epistemological matters is provided.

Domaines: Philosophie; Logique [math.LO]

Manuel Rebuschi, Franck Lihoreau. Contextual Epistemic Logic. C. Degrémont, L. Keiff & H. Rückert. Dialogues, Logics and Other Strange Things. Essays in Honour of Shahid Rahman, King's College Publication, pp.305-335, 2008, Tributes. ⟨hal-00133359⟩