Two approaches to the formalisation of defeasible deontic reasoning

Studia Logica 57 (1):73 - 90 (1996)

Abstract
This paper compares two ways of formalising defeasible deontic reasoning, both based on the view that the issues of conflicting obligations and moral dilemmas should be dealt with from the perspective of nonmonotonic reasoning. The first way is developing a special nonmonotonic logic for deontic statements. This method turns out to have some limitations, for which reason another approach is recommended, viz. combining an already existing nonmonotonic logic with a deontic logic. As an example of this method the language of Reiter's default logic is extended to include modal expressions, after which the argumentation framework in default logic of [20, 22] is used to give a plausible logical analysis of moral dilemmas and prima facie obligations.
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DOI 10.1007/BF00370670
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References found in this work BETA

Modal Logic: An Introduction.Brian F. Chellas - 1980 - Cambridge University Press.
The Concept of Law.Hla Hart - 1961 - Oxford University Press.
Five Faces of Minimality.David Makinson - 1993 - Studia Logica 52 (3):339 - 379.
Moral Dilemmas and Nonmonotonic Logic.John F. Horty - 1994 - Journal of Philosophical Logic 23 (1):35 - 65.

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Citations of this work BETA

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Obligation as Optimal Goal Satisfaction.Robert Kowalski & Ken Satoh - 2018 - Journal of Philosophical Logic 47 (4):579-609.

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