Kripke Incompleteness of Predicate Extensions of the Modal Logics Axiomatized by a Canonical Formula for a Frame with a Nontrivial Cluster
Author: Shimura T.1
Source: Studia Logica, Volume 65, Number 2, July 2000 , pp. 237-247(11)
Publisher: Springer
Abstract:
We generalize the incompleteness proof of the modal predicate logic Q-S4+ 
p

p + BF described in Hughes-Cresswell [6]. As a corollary, we show that, for every subframe logic Lcontaining S4, Kripke completeness of Q-L+ BF implies the finite embedding property of L.
Keywords: Modal predicate logics; Kripke incompleteness; Canonical formulas
Language: English
Document Type: Regular paper
Affiliations: 1: Department of Mathematics College of Science and Technology Nihon University 1-8-14 Kanda Surugadai, Chiyoda-ku Tokyo 101-8308, Japan shimura@math.cst.nihon-u.ac.jp

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