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Abstract: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.
* In the Proceedings of the International Joint Conference on
Qualitative and Quantitative Practical Reasoning (ESCQARU/FAPR 97), Lecture
Notes in Artificial Intelligence, vol. 1244, pages 282-297, Springer-Verlag,
1997 * 22 pages, a paper in preliminary form that appeared later in
conference proceedings