This volume comprises the proceedings of the First All-Berlin Workshop on Nonclassical Logics and Information Processing, held at the Free University of Berlin, November 9-10, 1990. The scope of the ten papers in the volume is broad, covering various different subfields of logic - particularly nonclassical logic - and its applications in artificial intelligence. The papers are grouped according to the four major topics that emerged at the meeting: modal systems, logic programming, nonmonotonic logics, and proof theory. The classification is only a rough guide since the four areas overlap considerably.

InhaltsangabeAlgebraic aspects of the relational knowledge representation: Modal relation algebras.- A logic for memory.- Actions with preconditions and postconditions.- Testclasses and closed world assumptions for non-horn theories.- Reasoning with negative information, II: Hard negation, strong negation and logic programs.- Lindenbaum-algebraic semantics of logic programs.- Conditional logics and cumulative logics.- Semantics of nonmonotonic reasoning in logic programming.- Formulas-as-types for a hierarchy of sublogics of intuitionistic propositional logic.- Cut-elimination in logics with definitional reflection.