AbstractThe paper discusses ten philosophical problems in deontic logic: how to formally represent norms, when a set of norms may be termed ‘coherent’, how to deal with normative conﬂicts, how contraryto-duty obligations can be appropriately modeled, how dyadic deontic operators may be redeﬁned to relate to sets of norms instead of preference relations between possible worlds, how various concepts of permission can be accommodated, how meaning postulates and counts-as conditionals can be taken into account, and how sets of norms may be revised and merged. The problems are discussed from the viewpoint of input/output logic as developed by van der Torre & Makinson. We argue that norms, not ideality, should take the central position in deontic semantics, and that a semantics that represents norms, as input/output logic does, provides helpful tools for analyzing, clarifying and solving the problems of deontic logic.
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References found in this work
On the Logic of Theory Change: Contraction Functions and Their Associated Revision Functions.Carlos E. Alchourron & David Makinson - 1982 - Theoria 48 (1):14-37.