Duality and Canonical Extensions of Bounded Distributive Lattices with Operators, and Applications to the Semantics of Non-Classical Logics II
Homogeneous and Universal Dedekind Algebras
Elementary Classes in Basic Modal Logic
Varieties of Monadic Heyting Algebras. Part III
On the Existence of Continua of Logics Between Some Intermediate Predicate Logics
A Note on Graded Modal Logic*
Inconsistent Mathematics
A General Algebraic Semantics for Sentential Logics
The Incompleteness Phenomenon
Logic - a Human Affair