Epistemic entrenchment-based multiple contractions

Fermé, Eduardo; Reis, Maurício D. L.

http://hdl.handle.net/10400.13/3446

Use this identifier to reference this record.

Name:	Description:	Size:	Format:
Epistemic entrenchment-based multiple contractions.pdf		254.88 KB	Adobe PDF	Download

Send Feedback

Authors

Fermé, Eduardo

Reis, Maurício D. L.

Abstract(s)

In this article we present a new class of multiple contraction functions—the epistemic entrenchment-based multiple contractions—which are a generalization of the epistemic entrenchment-based contractions (Gardenfors, 1988; G ¨ ardenfors & Makinson, 1988) to the case of ¨ contractions by (possibly nonsingleton) sets of sentences and provide an axiomatic characterization for that class of functions. Moreover, we show that the class of epistemic entrenchment-based multi ple contractions coincides with the class of system of spheres-based multiple contractions introduced in Ferme & Reis (2012).

Keywords

Multiple contraction functions Epistemic entrenchment-based multiple contractions Epistemic entrenchment-based contractions System of spheres-based multiple contractions . Faculdade de Ciências Exatas e da Engenharia