Trends in Logic

50 Years of Studia Logica: Editorial Introduction.- Polish Logic in Postwar Period.- Fifty Years: Changes and Constants in Logic.- Generalized Matrices in Abstract Algebraic Logic.- Intensional Logic — Beyond First Order.- Questions of Canonicity.- ?ukasiewicz Logic and Chang’s MV Algebras in Action.- Substructural Logics and Residuated Lattices — an Introduction.- Quantum Computational Logics: A Survey.- Inconsistent Arithmetics: Issues Technical and Philosophical.- Inconsistency-tolerant Description Logic: Motivation and Basic Systems.- Type Logics in Grammar.