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A Semantics for Counterfactuals Based on Fuzzy Logic

  1. 1.
    0364306 - UIVT-O 2012 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
    Běhounek, Libor - Majer, Ondrej
    A Semantics for Counterfactuals Based on Fuzzy Logic.
    The Logica Yearbook 2010. London: College Publications, 2011 - (Peliš, M.; Punčochář, V.), s. 25-41. ISBN 978-1-84890-038-7.
    [LOGICA 2010. Hejnice (CZ), 21.06.2010-25.06.2010]
    Grant CEP: GA AV ČR IAA900090703; GA ČR GAP202/10/1826; GA ČR GEICC/08/E018
    Výzkumný záměr: CEZ:AV0Z10300504; CEZ:AV0Z90090514
    Klíčová slova: counterfactual conditional * mathematical fuzzy logic * Lewis-Stalnaker semantics * similarity relation
    Kód oboru RIV: BA - Obecná matematika

    Lewis-Stalnaker's semantics for counterfactuals is based on the notion of similarity of possible worlds. Since the general notion of similarity is prominently studied in fuzzy mathematics, where it is modeled by fuzzy equivalence relations, it is natural to attempt at reconstructing Lewis' and Stalnaker's ideas in terms of fuzzy similarities. This paper sketches such a reconstruction; full details will be presented in an upcoming paper. We demonstrate that the approach is viable, adequate with respect to the expected properties of counterfactuals, and provides meaningful generalizations of the classical account.
    Trvalý link: http://hdl.handle.net/11104/0199825
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