THE LOGIC OF PERMISSION AND OBLIGATION IN THE FRAMEWORK OF ALX. 3: HOW TO AVOID THE PARADOXES OF DEONTIC LOGICS

Standard deontic logic features fairly serious socalled "paradoxes" (technically: counterintuitive validities). Much energy in deontic logic has been spent on avoiding these "paradoxes". We suggest a reformulation of deontic logic in terms of a multi-agent logic, ALX. 3, where a...

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Bibliographic Details
Published in:Logique et analyse 1995-03, Vol.38 (149), p.55-74
Main Authors: HUANG, Zhisheng, MASUCH, Michael
Format: Article
Language:English
Subjects:
Abstract logic
Altruism
Deontic logic
Logic
Mathematical functions
Modal logic
Obligation
Paradoxes
Permission
Semantics
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Summary:Standard deontic logic features fairly serious socalled "paradoxes" (technically: counterintuitive validities). Much energy in deontic logic has been spent on avoiding these "paradoxes". We suggest a reformulation of deontic logic in terms of a multi-agent logic, ALX. 3, where a "super-agent" (think of a legislature) lays down the law of the land and other agents have to follow its rules. In particular, obligations are reformulated in terms of "preferences" of the superagent. We can show that our approach avoids the classical "paradoxes" of deontic logic, thanks to the properties of the preference operator of ALX. 3.
ISSN:0024-5836
2295-5836