Generalizes Fine's selection method to the weakly transitive setting, giving a frame-theoretic proof of finite model property for strongly cofinal subframe logics extending wK4 and extending the finite width theorem.
Canonical Formulas for K4. Part I: Basic Results
2 Pith papers cite this work. Polarity classification is still indexing.
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The Subdivision Construction produces finite modal algebras as countermodels for stable canonical rules of finite height, establishing the finite model property for broad classes of modal logics and rule systems.
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Chopping More Finely: Finite Countermodels in Modal Logic via the Subdivision Construction
The Subdivision Construction produces finite modal algebras as countermodels for stable canonical rules of finite height, establishing the finite model property for broad classes of modal logics and rule systems.