A Ceteris Paribus Deontic Logic

Andrea Loreggia (1) , Emiliano Lorini (2, 3) , Giovanni Sartor (4, 1)

1 EUI - European University Institute
2 IRIT-LILaC - Logique, Interaction, Langue et Calcul
3 CNRS - Centre National de la Recherche Scientifique
4 CIRSFID - Centro Interdipartimentale di Ricerca in Storia del Diritto, Filosofia e Sociologia del Diritto

We present a formal semantics for deontic logic based on the concept of ceteris paribus preferences. We introduce notions of unconditional obligation and permission as well as conditional obligation and permission that are interpreted relative to this semantics. We show that these notions satisfy some intuitive properties and, at the same time, do not encounter some problems and paradoxes that have been extensively discussed in the deontic logic literature. Moreover, we show how obligations and permissions can be represented compactly using existing preference frameworks from the artificial intelligence area of computational social choice.

Mots clés: Deontic Logic; Ceteris paribus preferences; CP-net

Domaines: Intelligence artificielle [cs.AI]; Logique en informatique [cs.LO]

Andrea Loreggia, Emiliano Lorini, Giovanni Sartor. A Ceteris Paribus Deontic Logic. 35th Italian Conference on Computational Logic (CILC 2020), Sep 2020, Rende, Italy. pp.248-262. ⟨hal-03008592⟩