Invited Papers.- Trakhtenbrot Theorem and Fuzzy Logic.- Descriptive Complexity, Lower Bounds and Linear Time.- Testing of Finite State Systems.- Contributed Papers.- On the Power of Quantifiers in First-Order Algebraic Specification.- On the Effective Semantics of Nondeterministic, Nonmonotonic, Temporal Logic Databases.- Revision Programming = Logic Programming + Integrity Constraints.- Quantifiers and the System KE: Some Surprising Results.- Choice Construct and Lindström Logics.- Monadic NP and Graph Minors.- Invariant Definability and P/poly.- Computational Complexity of Ehrenfeucht-Fraïssé Games on Finite Structures.- An Upper Bound for Minimal Resolution Refutations.- On an Optimal Deterministic Algorithm for SAT.- Characteristic Properties of Majorant-Computability Over the Reals.- Theorems of Péter and Parsons in Computer Programming.- Kripke, Belnap, Urquhart and Relevant Decidability & Complexity.- Existence and Uniqueness of Normal Forms in Pure Type Systems with ??-conversion.- Normalization of Typable Terms by Superdevelopments.- Subtyping Functional+Nonempty Record Types.- Monotone Fixed-Point Types and Strong Normalization.- Morphisms and Partitions of V-sets.- Computational Adequacy in an Elementary Topos.- Logical Relations and Inductive/Coinductive Types.- On the Complexity of H-Subsumption.- Complexity Classes and Rewrite Systems with Polynomial Interpretation.- RPO Constraint Solving Is in NP.- Quantifier Elimination in Fuzzy Logic.- Many-Valued First-Order Logics with Probabilistic Semantics.
