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On axiomatising products of Kripke frames

Published online by Cambridge University Press:  12 March 2014

Ágnes Kurucz
Ágnes Kurucz*
Affiliation:
Department of Computing, Imperial College, London, England, E-mail: [email protected]
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Abstract

It is shown that the many-dimensional modal logic Kn, determined by products of n-many Kripke frames, is not finitely axiomatisable in the n-modal language, for any n > 2. On the other hand, Kn is determined by a class of frames satisfying a single first-order sentence.

Type
Research Article
Information
The Journal of Symbolic Logic , Volume 65 , Issue 2 , June 2000 , pp. 923 - 945
Copyright
Copyright © Association for Symbolic Logic 2000

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