Believability Relations for Select-Direct Sentential Revision
2017 (English)In: Studia Logica: An International Journal for Symbolic Logic, ISSN 0039-3215, E-ISSN 1572-8730, Vol. 105, no 1, 37-63 p.Article in journal (Refereed) Published
A set of sentential revision operations can be generated in a select-direct way within a new framework for belief change named descriptor revision firstly introduced in Hansson . In this paper, we adopt another constructive approach to these operations, based on a relation <= on sentences named believability relation. Intuitively,phi <= psi means that the subject is at least as prone to believe or accept phi as to believe or accept . We demonstrate that so called H-believability relations and basic believability relations, the second of which the is axiomatically characterized with a set of weak postulates, are faithful alternative models for two typical select-direct sentential revision operations. Then we investigate additional postulates on believability relations that correlate with properties of the generated revision operations. Finally, we show that traditional AGM revision operations can be reconstructed from a strengthened variant of the basic believability relation and there is a close connection between this relation and the standard epistemic entrenchment relation.
Place, publisher, year, edition, pages
Springer, 2017. Vol. 105, no 1, 37-63 p.
Sentential revision, Belief change, Select-direct, Descriptor revision, Believability relation, AGM revision, Epistemic entrenchment relation
Philosophy, Ethics and Religion
IdentifiersURN: urn:nbn:se:kth:diva-204110DOI: 10.1007/s11225-016-9681-0ISI: 000394273900003ScopusID: 2-s2.0-84983731467OAI: oai:DiVA.org:kth-204110DiVA: diva2:1085197
QC 201703282017-03-282017-03-282017-03-28Bibliographically approved