Journal of Philosophical Logic 42 (6):799-829 (2013)

In this paper we propose an extension of Defeasible Logic to represent and compute different concepts of defeasible permission. In particular, we discuss some types of explicit permissive norms that work as exceptions to opposite obligations or encode permissive rights. Moreover, we show how strong permissions can be represented both with, and without introducing a new consequence relation for inferring conclusions from explicit permissive norms. Finally, we illustrate how a preference operator applicable to contrary-to-duty obligations can be combined with a new operator representing ordered sequences of strong permissions. The logical system is studied from a computational standpoint and is shown to have linear computational complexity
Keywords Deontic logic  Defeasible logic  Permission  Computational complexity
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DOI 10.1007/s10992-013-9295-1
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References found in this work BETA

Norm and Action: A Logical Enquiry.Georg Henrik von Wright - 1963 - New York, NY, USA: Routledge and Kegan Paul.
Input/Output Logics.David Makinson & Leendert van der Torre - 2000 - Journal of Philosophical Logic 29 (4):383-408.
Permission From an Input/Output Perspective.David Makinson & Leendert van der Torre - 2003 - Journal of Philosophical Logic 32 (4):391 - 416.
A Theory of Permission Based on the Notion of Derogation.Audun Stolpe - 2010 - Journal of Applied Logic 8 (1):97-113.

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Citations of this work BETA

On the Complexity of Input/Output Logic.Xin Sun & Livio Robaldo - 2017 - Journal of Applied Logic 25:69-88.

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