Journal of Philosophical Logic 42 (2):285-315 (2013)

Authors
Joke Meheus
University of Ghent
Mathieu Beirlaen
University of Ghent
Abstract
We present the inconsistency-adaptive deontic logic DP r , a nonmonotonic logic for dealing with conflicts between normative statements. On the one hand, this logic does not lead to explosion in view of normative conflicts such as O A ∧ O ∼A, O A ∧ P ∼A or even O A ∧ ∼O A. On the other hand, DP r still verifies all intuitively reliable inferences valid in Standard Deontic Logic (SDL). DP r interprets a given premise set ‘as normally as possible’ with respect to SDL. Whereas some SDL-rules are verified unconditionally by DP r , others are verified conditionally. The latter are applicable unless they rely on formulas that turn out to behave inconsistently in view of the premises. This dynamic process is mirrored by the proof theory of DP r
Keywords Deontic logic  Normative conflicts  Paraconsistent logic  Inconsistency-tolerance  Nonmonotonic logic  Adaptive logic
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DOI 10.1007/s10992-011-9221-3
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References found in this work BETA

In Contradiction: A Study of the Transconsistent.Graham Priest - 1987 - Dordrecht, Netherland: Oxford University Press.
Agency and Deontic Logic.John F. Horty - 2001 - Oxford, England: Oxford University Press.
Paraconsistent Logic.Graham Priest - 2008 - Stanford Encyclopedia of Philosophy.

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Citations of this work BETA

Conflicting Reasons, Unconflicting ‘Ought's.Shyam Nair - 2016 - Philosophical Studies 173 (3):629-663.
The Free Choice Permission as a Default Rule.Daniela Glavaničová - 2018 - Organon F: Medzinárodný Časopis Pre Analytickú Filozofiu 25 (4):495-516.

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