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Regular version of the site

Book chapter

Canonical filtrations and local tabularity

P. 498-512.
The paper deals with a special type of filtration in modal logic called "canonical". This filtration has been known since the 1970s, but was used only occasionally. Applying it in a systematic way allows us to prove new results on finite model property (and in some cases --- local tabularity)  for different polymodal logics.