Possible Worlds Semantics for Partial Meet Multiple Contraction

Journal of Philosophical Logic 41 (1):7-28 (2012)
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Abstract

In the logic of theory change, the standard model is AGM, proposed by Alchourrón et al. (J Symb Log 50:510–530, 1985 ). This paper focuses on the extension of AGM that accounts for contractions of a theory by a set of sentences instead of only by a single sentence. Hansson (Theoria 55:114–132, 1989 ), Fuhrmann and Hansson (J Logic Lang Inf 3:39–74, 1994 ) generalized Partial Meet Contraction to the case of contractions by (possibly non-singleton) sets of sentences. In this paper we present the possible worlds semantics for partial meet multiple contractions.

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References found in this work

Modal Logic: An Introduction.Brian F. Chellas - 1980 - New York: Cambridge University Press.
A Textbook of Belief Dynamics: Theory Change and Database Updating.Sven Ove Hansson - 1999 - Dordrecht and Boston: Kluwer Academic Publishers.
Two modellings for theory change.Adam Grove - 1988 - Journal of Philosophical Logic 17 (2):157-170.

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