Munich Center for Mathematical Philosophy (MCMP)

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Zoom Talk: Volker Halbach (Oxford)

Meeting ID: 925-6562-2309

16.07.2020 16:00  – 18:00 

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The Fourth Grade of Modal Involvement


I present a logical framework for analyzing de re modalities in their full force. The sentential operators of modal logic and unary semantic predicates in Quine's sense are shown to fall short of capturing the full strength of modal discourse. Instead we employ binary modal predicates applying to formulae (or relations) and variable assignments. Possible worlds semantics for such predicates is sketched. Finally, some applications to metaphysics, more specifically, actualism are explored.