Entrenchment Relations: A Uniform Approach to Nonmonotonicity

07/26/2000

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by   Konstantinos Georgatos, et al.

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We show that Gabbay's nonmonotonic consequence relations can be reduced to a new family of relations, called entrenchment relations. Entrenchment relations provide a direct generalization of epistemic entrenchment and expectation ordering introduced by Gardenfors and Makinson for the study of belief revision and expectation inference, respectively.