Home » Quantifiers, Propositions and Identity: Admissible Semantics for Quantified Modal and Substructural Logics by Robert Goldblatt
Quantifiers, Propositions and Identity: Admissible Semantics for Quantified Modal and Substructural Logics Robert Goldblatt

Quantifiers, Propositions and Identity: Admissible Semantics for Quantified Modal and Substructural Logics

Robert Goldblatt

Published May 11th 2012
ISBN : 9781139098427
ebook
288 pages
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 About the Book 

Many systems of quantified modal logic cannot be characterised by Kripkes well-known possible worlds semantic analysis. This book shows how they can be characterised by a more general admissible semantics, using models in which there is aMoreMany systems of quantified modal logic cannot be characterised by Kripkes well-known possible worlds semantic analysis. This book shows how they can be characterised by a more general admissible semantics, using models in which there is a restriction on which sets of worlds count as propositions. This requires a new interpretation of quantifiers that takes into account the admissibility of propositions. The author sheds new light on the celebrated Barcan Formula, whose role becomes that of legitimising the Kripkean interpretation of quantification. The theory is worked out for systems with quantifiers ranging over actual objects, and over all possibilia, and for logics with existence and identity predicates and definite descriptions. The final chapter develops a new admissible cover semantics for propositional and quantified relevant logic, adapting ideas from the Kripke Joyal semantics for intuitionistic logic in topos theory. This book is for mathematical or philosophical logicians, computer scientists and linguists.