What is negation as failure?

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Abstract

An equational approach is used to give semantics to negation as failure. We offer an Equational Calculus and in it we define a new completion for programs with negation as failure in the body of clauses. This approach is compared with other approaches in the literature and a connection is established with argumentation theory. © 2012 Springer-Verlag Berlin Heidelberg.

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Gabbay, D. M. (2012). What is negation as failure? Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 7360 LNCS, 52–78. https://doi.org/10.1007/978-3-642-29414-3_5

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