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Constraint logic programming with hereditary Harrop formulas

Leach Albert, Javier and Nieva Soto, Susana and Rodríguez-Artalejo , Mario (1997) Constraint logic programming with hereditary Harrop formulas. In Logic programming. Proceedings of the international symposium (ILPS’97). MIT Press, Cambridge, Port Washington, New York, pp. 307-321. ISBN 0-262-63180-6

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Abstract

Constraint logic programing (CLP) and hereditary Harrop formulas (HH) are two well-known ways to enhance the expressivity of Horn clauses. In this paper, we present a novel combination of these two approaches. We show how to enrich the syntax and proof theory of HH with the help of a given constraint system, in such a way that the key property of HH as a logic programming language (namely, the existence of uniform proofs) is preserved. We also present a procedure for goal solving, showing its soundness and completeness for computing answer constraints. As a consequence of this result, we obtain a new strong completeness theorem for CLP that avoids building disjunctions of computed answers, as well as a more declarative formulation of a known completeness theorem for HH

Item Type:Book Section
Additional Information:Conference: 1997 International Logic Programming Symposium (ILPS 97) Location: Port Washngton, New York Date: Oct 13-16, 1997
Uncontrolled Keywords:Constraint systems; Hereditary Harrop formulas; Uniform proofs; Goal solving
Subjects:Sciences > Computer science > Programming languages (Electronic computers)
ID Code:17267
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Deposited On:29 Nov 2012 10:30
Last Modified:29 Nov 2012 10:30

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