A Formal Model of Multi-Agent Belief-Interaction
2006 (English)In: Journal of Logic, Language and Information, ISSN 0925-8531, E-ISSN 1572-9583, Vol. 15, no 4, 303-329 p.Article in journal (Refereed) Published
A semantics is presented for belief revision in the face of common announcements to a group of agents that have beliefs about each other's beliefs. The semantics is based on the idea that possible worlds can be viewed as having an internal-structure, representing the belief independent features of the world, and the respective belief states of the agents in a modular fashion. Modularity guarantees that changing one aspect of the world (a belief independent feature or a belief state) has no effect on any other aspect of the world. This allows us to employ an AGM-style selection function to represent revision. The semantics is given a complete axiomatisation (identical to the axiomatisation found by Gerbrandy and Groeneveld for a semantics based on non-wellfounded set theory) for the special case of expansion.
Place, publisher, year, edition, pages
2006. Vol. 15, no 4, 303-329 p.
Belief revision, Common announcements, Common knoweledge, Dynamic logic, Epistemic logic
IdentifiersURN: urn:nbn:se:kth:diva-87515DOI: 10.1007/s10849-006-3776-3ScopusID: 2-s2.0-33751549037OAI: oai:DiVA.org:kth-87515DiVA: diva2:501728
QC 201411262012-02-142012-02-142014-11-26Bibliographically approved