A Paper Abstract by Benjamin Grosof

Default Reasoning As Circumscription (Oct. 1984)

by Benjamin N. Grosof

Abstract: This paper discusses how to map defaults cf. Reiter's Default Logic to circumscription, and vice versa. In addition, it gives some technical results about circumscription, relating maximizing a formula to minimizing an abnormality predicate. The key relationship is that a normal default without prerequisite in Default Logic is very similar to maximizing a formula (or minimizing its corresponding abnormality predicate) in circumscription.
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