A necessary condition for Constructive Negation in Constraint Logic Programming

Stuckey (1995) has presented a sound and complete procedure for Constructive Negation in Constraint Logic Programming, together with a sufficient condition, called admissible closure, which guarantees an effective implementation. In this paper we analyze this condition and relate it to the decidabil...

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Bibliographic Details
Published in:Information processing letters Vol. 74; no. 3; pp. 147 - 156
Main Authors: Dovier, Agostino, Pontelli, Enrico, Rossi, Gianfranco
Format: Journal Article
Language:English
Published: Amsterdam Elsevier B.V 31.05.2000
Elsevier Sequoia S.A
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ISSN:0020-0190, 1872-6119
Online Access:Get full text
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Summary:Stuckey (1995) has presented a sound and complete procedure for Constructive Negation in Constraint Logic Programming, together with a sufficient condition, called admissible closure, which guarantees an effective implementation. In this paper we analyze this condition and relate it to the decidability of the underlying constraint structure. We prove that the admissible closure condition is also necessary to guarantee the existence of an effective implementation of Constructive Negation.
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ISSN:0020-0190
1872-6119
DOI:10.1016/S0020-0190(00)00046-6