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Title:Belief change in branching time: AGM-consistency and iterated revision PDF Logo
Authors:Bonanno, Giacomo
Issue Date:2010
Series/Report no.:Working Papers, University of California, Department of Economics 10,1
Abstract:We study belief change in the branching-time structures introduced in [4]. First, we identify a property of branching-time frames that is equivalent to AGM-consistency, which is defined as follows. A frame is AGM-consistent if the partial belief revision function associated with an arbitrary state-instant pair and an arbitrary model based on that frame can be extended to a full belief revision function that satisfies the AGM postulates. Second, we provide a set of modal axioms that characterize the class of AGM-consistent frames within themodal logic introduced in [4]. Third, we introduce a generalization of AGM belief revision functions that allows a clear statement of principles of iterated belief revision and discuss iterated revision both semantically and syntactically.
Subjects:branching time
belief revision
information
iterated belief revision
plausibility ordering
Document Type:Working Paper
Appears in Collections:Working Papers, Department of Economics, UC Davis

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