Abstract
In [2] Prior puts forward a tense logic, GH1, which is intended to axiomatise tense logic with time linear and rational; he also contemplates the tense logic with time linear and real. The purpose of this paper is to give completeness proofs for three axiom systems, GH1, GHlr, GHli, with respect to tense logic with time linear and rational, real, and integral, respectively.1 In a fourth section I show that GH1 and GHlr have the finite model property, but that GHli lacks it.GH1 has the operators of the classical propositional calculus, together with operators P, H, F, G for ‘It has been the case that’, ‘It has always been the case that’, ‘It will be the case that’, ‘It will always be the case that’, respectively.
Publisher
Cambridge University Press (CUP)
Reference2 articles.
1. An algebraic study of Diodorean modal systems;Bull;this Journal,1965
2. Postulates for tense-logic;Prior;American philosophical quarterly,1966
Cited by
44 articles.
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