Coherentist Contraction

Sven Ove Hansson

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Keywords: Belief revision, belief change, coherentism, foundationalism, contraction.

: A model of coherentist belief contraction is constructed. The outcome of belief contraction is required to be one of the coherent subsets of the original belief set, and a set of plausible properties are proposed for this set of coherent subsets. The contraction operators obtained in this way are shown to coincide with well-known belief base operations. This connection between coherentist and "foundationalist" approaches to belief change has important implications for the philosophical interpretation of models of belief change.

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Sven Ove Hansson,

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