Making Beliefs Coherentl. The Subtraction and Addition Strategies. |
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Authors: | Erick J. Olsson |
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Affiliation: | (1) Fachgruppe Philosophie, Universität Konstanz, Konstanz, Germany |
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Abstract: | The notion of epistemic coherence is interpreted as involving not only consistency but also stability. The problem how to consolidate a belief system, i.e., revise it so that it becomes coherent, is studied axiomatically as well as in terms of set-theoretical constructions. Representation theorems are given for subtractive consolidation (where coherence is obtained by deleting beliefs) and additive consolidation (where coherence is obtained by adding beliefs). |
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Keywords: | Belief revision consolidation coherence stability |
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