Economics and Philosophy 13 (1):39-59 (1997)
|Abstract||The principle of belief persistence, or conservativity principle, states that ’\Nhen changing beliefs in response to new evidence, you should continue to believe as many of the old beliefs as possible' (Harman, 1986, p. 46). In particular, this means that if an individual gets new information, she has to accommodate it in her new belief set (the set of propositions she believes), and, if the new information is not inconsistent with the old belief set, then (1) the individual has to maintain all the beliefs she previously had and (2) the change should be minimal in the sense that every proposition in the new belief set must be deducible from the union of the old belief set and the new information (see, e.g., Gardenfors, 1988; Stalnaker, 1984). We focus on this minimal notion of belief persistence and characterize it both semantically and syntactically. A ’possible world' semantic formalization of the principle easily comes to mind. The set of all the propositions that the individual believes corresponds to the set of states of the world that she considers possible and is a subset of the set of states that are not ruled out by the individual's information (or knowledge). It is required that, if the individual considers a state possible and her new information does not exclude this state, then she continue to consider it possible. Furthermore, if the individual regards a particular state as impossible, then she should continue to regard it as impossible unless her new information excludes all the states that she previously regarded as possible. This is closely related to the..|
|Keywords||No keywords specified (fix it)|
|Categories||categorize this paper)|
|Through your library||Configure|
Similar books and articles
Giacomo Bonanno (2008). Belief Revision in a Temporal Framework. In Krzysztof Apt & Robert van Rooij (eds.), New Perspectives on Games and Interaction. Amsterdam University Press.
Pedrito Maynard-Reid II & Yoav Shoham (2001). Belief Fusion: Aggregating Pedigreed Belief States. [REVIEW] Journal of Logic, Language and Information 10 (2):183-209.
Giacomo Bonanno (2000). Common Belief with the Logic of Individual Belief. Mathematical Logic Quarterly 46 (1):49-52.
Pedrito Maynard-Reid & Yoav Shoham (2001). Belief Fusion: Aggregating Pedigreed Belief States. Journal of Logic, Language and Information 10 (2).
James P. Delgrande, Abhaya C. Nayak & Maurice Pagnucco (2005). Gricean Belief Change. Studia Logica 79 (1):97 - 113.
Giacomo Bonanno (1999). Varieties of Interpersonal Compatibility of Beliefs. In Jelle Gerbrandy, Maarten Marx, Maarten de Rijke & Yde Venema (eds.), Essays dedicated to Johan van Benthem on the occasion of his 50th birthday. Amsterdam University Press.
Oliver Schulte (1999). Minimal Belief Change and the Pareto Principle. Synthese 118 (3):329-361.
Greg Restall (1997). Ways Things Can't Be. Notre Dame Journal of Formal Logic 38 (4):583-596.
Added to index2009-04-07
Total downloads37 ( #36,954 of 722,839 )
Recent downloads (6 months)1 ( #60,917 of 722,839 )
How can I increase my downloads?