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On axiomatising products of Kripke frames

Published online by Cambridge University Press:  12 March 2014

Ágnes Kurucz*
Affiliation:
Department of Computing, Imperial College, London, England, E-mail: kuag@doc.ic.ac.uk

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
Copyright
Copyright © Association for Symbolic Logic 2000

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References

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