Published on Mon Apr 25 2016

AGM-Style Revision of Beliefs and Intentions from a Database Perspective (Preliminary Version)

Marc van Zee, Dragan Doder

We introduce a logic for temporal beliefs and intentions based on Shoham's database perspective. Strong beliefs are independent from intentions, while weak beliefs are obtained by adding intentions to strong beliefs. We provide AGM-style postulates for the revision of strong beliefs and intention.

0
0
0
Abstract

We introduce a logic for temporal beliefs and intentions based on Shoham's database perspective. We separate strong beliefs from weak beliefs. Strong beliefs are independent from intentions, while weak beliefs are obtained by adding intentions to strong beliefs and everything that follows from that. We formalize coherence conditions on strong beliefs and intentions. We provide AGM-style postulates for the revision of strong beliefs and intentions. We show in a representation theorem that a revision operator satisfying our postulates can be represented by a pre-order on interpretations of the beliefs, together with a selection function for the intentions.