Editorial Board
Editor's preface
Extended inference modes in reasoning by computer systems
Circumscription—A form of non-monotonic reasoning
Non-monotonic logic I
The mathematics of non-monotonic reasoning
A logic for default reasoning
Prolegomena to a theory of mechanized formal reasoning
Addendum: Circumscription and other non-monotonic formalisms
AISB-80
IRIA 5th conference on automated deduction : July 8–11, 1980, Les Arcs, Savoie, France