Relevant to philosophy, law, management, and artificial intelligence, these papers explore the applicability of nonmonotonic or defeasible logic to normative reasoning. The resulting systems purport to solve well-known deontic paradoxes and to provide a better treatment than classical deontic logic does of prima facie obligation, conditional obligation, and priorities of normative principles.

Zusammenfassung
Relevant to philosophy, law, management, and artificial intelligence, this book explores the applicability of defeasible logic to normative reasoning. The resulting systems provide a better treatment than classical deontic logic does of prima facie obligation, conditional obligation, and priorities of normative principles.

Inhalt
Nonmonotonic Foundations for Deontic Logic.- Deontic Logics of Defeasibility.- Systematic Frame Constants in Defeasible Deontic Logic.- The Many Faces of Defeasibility in Defeasible Deontic Logic.- Deontic Logic Viewed as Defeasible Reasoning.- Reasons to Think and Act.- Common Sense Obligation.- Defeasible Reasoning and Moral Dilemmas.- Dyadic Deontic Logic and Contrary-to-Duty Obligations.- Defeasbile Reasoning with Legal Rules.- Apparent Obligation.- A New Approach to Contrary-to-Duty Obligations.- Alchourrón and von Wright on Conflict among Norms.