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  1. Belief Liberation.Richard Booth, Samir Chopra, Aditya Ghose & Thomas Meyer - 2005 - Studia Logica 79 (1):47-72.
    We provide a formal study of belief retraction operators that do not necessarily satisfy the postulate. Our intuition is that a rational description of belief change must do justice to cases in which dropping a belief can lead to the inclusion, or ‘liberation’, of others in an agent's corpus. We provide two models of liberation via retraction operators: ρ-liberation and linear liberation. We show that the class of ρ-liberation operators is included in the class of linear ones and provide axiomatic (...)
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  • Parallel Interpolation, Splitting, and Relevance in Belief Change.George Kourousias & David C. Makinson - 2007 - Journal of Symbolic Logic 72 (3):994-1002.
    The splitting theorem says that any set of formulae has a finest representation as a family of letter-disjoint sets. Parikh formulated this for classical propositional logic, proved it in the finite case, used it to formulate a criterion for relevance in belief change, and showed that AGMpartial meet revision can fail the criterion. In this paper we make three further contributions. We begin by establishing a new version of the well-known interpolation theorem, which we call parallel interpolation, use it to (...)
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  • Distance Semantics for Relevance-Sensitive Belief Revision.Samir Chopra - manuscript
    Dept of Business Administration Dept of Computer and Knowledge Systems Group University of Patras Information Science School of Computer Science 265 00 Patras, Greece Brooklyn College of the and Engineering ppeppas@otenet.gr City University of New York University of New South Wales Brooklyn, NY 11210, USA Sydney, NSW 2052, Australia schopra@sci.brooklyn.cuny.edu norman@cse.unsw.edu.au..
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  • On AGM for Non-Classical Logics.Renata Wassermann - 2011 - Journal of Philosophical Logic 40 (2):271 - 294.
    The AGM theory of belief revision provides a formal framework to represent the dynamics of epistemic states. In this framework, the beliefs of the agent are usually represented as logical formulas while the change operations are constrained by rationality postulates. In the original proposal, the logic underlying the reasoning was supposed to be supraclassical, among other properties. In this paper, we present some of the existing work in adapting the AGM theory for non-classical logics and discuss their interconnections and what (...)
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