InhaltsangabeA tutorial on Nonmonotonic Reasoning.- On the sample complexity of various learning strategies in the probabilistic PAC learning paradigms.- More about learning elementary formal systems.- A polynomial time algorithm for finding finite unions of tree pattern languages.- Towards efficient inductive synthesis: Rapid construction of local regularities.- Deductive generalization in a default logic setting.- Deduction with supernormal defaults.- Multi-agent learning: Theoretical and empirical studies.- Predicate synthesis from formal specifications: Using mathematical induction for finding the preconditions of theorems.- Dual types of hypotheses in inductive inference.- All I know about Tweety.- Monotonic versus non-monotonic language learning.- Normal form results for default logic.- Retrieval in case-based reasoning using preferred subtheories.- Interactive synthesis of process flowcharts.- Probabilistic inference of approximations.