Two approaches to the formalisation of defeasible deontic reasoning

Studia Logica 57 (1):73 - 90 (1996)
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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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Citations of this work

Deontic logic.Paul McNamara - 2010 - Stanford Encyclopedia of Philosophy.
Sequent-based logical argumentation.Ofer Arieli & Christian Straßer - 2015 - Argument and Computation 6 (1):73-99.
Obligation as Optimal Goal Satisfaction.Robert Kowalski & Ken Satoh - 2018 - Journal of Philosophical Logic 47 (4):579-609.

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References found in this work

The concept of law.Hla Hart - 1963 - New York: Oxford University Press.
Modal Logic: An Introduction.Brian F. Chellas - 1980 - New York: Cambridge University Press.
The Right and the Good. Some Problems in Ethics.W. D. Ross - 1930 - Oxford: Clarendon Press. Edited by Philip Stratton-Lake.
The Concept of Law.Hla Hart - 1961 - Oxford, United Kingdom: Oxford University Press UK.
A logic for default reasoning.Ray Reiter - 1980 - Artificial Intelligence 13 (1-2):81-137.

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