Avoiding Deontic Explosion by Contextually Restricting Aggregation

Joke Meheus, Mathieu Beirlaen, Frederik Van De Putte

Research output: Contribution to journalMeeting AbstractPopular

20 Citations (Scopus)


In this paper, we present an adaptive logic for deontic conflicts, called P2.1(r), that is based on Goble's logic SDLaPe-a bimodal extension of Goble's logic P that invalidates aggregation for all prima facie obligations. The logic P2.1(r) has several advantages with respect to SDLaPe. For consistent sets of obligations it yields the same results as Standard Deontic Logic and for inconsistent sets of obligations, it validates aggregation "as much as possible". It thus leads to a richer consequence set than SDLaPe. The logic P2.1(r) avoids Goble's criticisms against other non-adjunctive systems of deontic logic. Moreover, it can handle all the 'toy examples' from the literature as well as more complex ones.
Original languageEnglish
Pages (from-to)148-165
Number of pages18
JournalLecture Notes in Computer Science
Publication statusPublished - 2010


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