Sommaire

A Note on some Characterization of Distributive Lattices of Finite Length
An Observation Concerning Porte’s Rule in Modal Logic
Categorical Abstract Algebraic Logic: Referential π-Institutions
Closure Operators on Complete Almost Distributive Lattices-III
Non-Fregean Logics of Analytic Equivalence (I)
Non-Fregean Logics of Analytic Equivalence (II)
On Some Applied First-Order Theories which Can Be Represented by Definitions
Unifiability and Structural Completeness in Relation Algebras and in Products of Modal Logic S5