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TABULARITY AND POST-COMPLETENESS IN TENSE LOGIC

Published online by Cambridge University Press:  07 April 2022

QIAN CHEN
Affiliation:
TSINGHUA-AMSTERDAM JOINT RESEARCH CENTRE FOR LOGIC DEPARTMENT OF PHILOSOPHY TSINGHUA UNIVERSITY NO. 1 QINGHUA YUAN, HAIDIAN DISTRICT BEIJING 100084, CHINA E-mail: [email protected]
MINGHUI MA*
Affiliation:
INSTITUTE OF LOGIC AND COGNITION DEPARTMENT OF PHILOSOPHY SUN YAT-SEN UNIVERSITY NO. 135 XINGANG XI ROAD, HAIZHU DISTRICT GUANGZHOU 510275, CHINA

Abstract

A new characterization of tabularity in tense logic is established, namely, a tense logic L is tabular if and only if $\mathsf {tab}_n^T\in L$ for some $n\geq 1$. Two characterization theorems for the Post-completeness in tabular tense logics are given. Furthermore, a characterization of the Post-completeness in the lattice of all tense logics is established. Post numbers of some tense logics are shown.

Type
Research Article
Copyright
© The Author(s), 2022. Published by Cambridge University Press on behalf of The Association for Symbolic Logic

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