Topological product of modal logics with McKinsey axiom

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Resumo

We consider products of modal logics in topological semantics and prove that the topological product of S4.1 and S4 is the fusion of logics S4.1 and S4 plus one extra axiom. This is an example of a topological product of logics that is greater than the fusion but less than the semiproduct of the corresponding logics.

Sobre autores

A. Kudinov

Steklov Mathematical Institute of Russian Academy of Sciences

Autor responsável pela correspondência
Email: kudinov.andrey@gmail.com
Rússia, Moscow

Bibliografia

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