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Hereditarily finitely axiomatizable extensions of logic S4

โœ Scribed by V. V. Rybakov


Publisher
Springer US
Year
1976
Tongue
English
Weight
775 KB
Volume
15
Category
Article
ISSN
0002-5232

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๐Ÿ“œ SIMILAR VOLUMES


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We use the apparatus of the canonical formulas introduced by Zakharyaschev [lo] to prove that all finitely axiomatizable normal modal logics containing K4.3 are decidable, though possibly not characterized by classes of finite frames. Our method is purely frame-theoretic. Roughly, given a normal log

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The aim of this article is to give a compact and self-contained description of the class of paraconsistent extensions of Johansson's (or minimal) logic (denoted Lj). The class of all non-trivial Lj-extensions is divided into three classes: the class Int of intermediate logics, the class Neg of negat