A common view on strong, uniform, and other notions of equivalence in answer-set programming
نویسندگان
چکیده
منابع مشابه
A Common View on Strong, Uniform, and Other Notions of Equivalence in Answer-Set Programming
Logic programming under the answer-set semantics nowadays deals with numerous different notions of program equivalence. This is due to the fact that equivalence for substitution (known as strong equivalence) and ordinary equivalence are different concepts. The former holds, given programs P and Q, iff P can be faithfully replaced by Q within any context R, while the latter holds iff P and Q pro...
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The distinction between strong negation and default negation has been useful in answer set programming. We present an alternative account of strong negation, which lets us view strong negation in terms of the functional stable model semantics by Bartholomew and Lee. More specifically, we show that, under complete interpretations, minimizing both positive and negative literals in the traditional...
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We study the notion of strong equivalence between two Answer Set programs and we show how some particular cases of testing strong equivalence between programs can be reduced to verify if a formula is a theorem in intuitionistic or classical logic. We present some program transformations for disjunctive programs, which can be used to simplify the structure of programs and reduce their size. Thes...
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Recent research in nonmonotonic logic programming under the answer-set semantics studies different notions of equivalence. In particular, strong and uniform equivalence are proposed as useful tools for optimizing (parts of) a logic program. While previous research mainly addressed propositional (i.e., ground) programs, we deal here with the more general case of non-ground programs, and provide ...
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ژورنال
عنوان ژورنال: Theory and Practice of Logic Programming
سال: 2008
ISSN: 1471-0684,1475-3081
DOI: 10.1017/s1471068407003250