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

Official URL: http://dl.acm.org/citation.http://dl.acm.org/citation.cfm?id=271419&CFID=149252991&CFTOKEN=67712323

## 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 |
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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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