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Narrowing Failure in Functional Logic Programming

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Functional and Logic Programming (FLOPS 2002)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 2441))

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Abstract

Negation as failure is an important language feature within the logic programming paradigm. The natural notion generalizing negation as failure in a functional logic setting is that of finite failure of reduction. In previous works we have shown the interest of using such programming construct when writing functional logic programs, and we have given a logical status to failure by means of proof calculi designed to deduce failures from programs. In this paper we address the problem of the operational mechanism for the execution of functional logic programs using failure. Our main contribution is the proposal of a narrowing relation able to deal with failures, which is constructive in the usual sense of the term in the context of negation, that is, narrowing is able to find substitutions for variables even in presence of failures. As main technical results, we prove correctness and completeness of the narrowing relation with respect to the proof-theoretic semantics.

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Author information

Authors and Affiliations

  1. Dep. Sistemas Informáticos y Programación, Univ. Complutense de Madrid, Madrid

    Francisco Javier López-Fraguas & Jaime Sánchez-Hernández

Authors
  1. Francisco Javier López-Fraguas
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  2. Jaime Sánchez-Hernández
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Editor information

Editors and Affiliations

  1. Department of Mathematical Informatics, University of Tokyo, Hongo 7-3-1, Bunkyo-Ku, Tokyo, 113-8656, Japan

    Zhenjiang Hu

  2. Department of Informatic Languages and Systems, Universidad Complutense de Madrid, Av. Complutense s/n, 28040, Madrid, Spain

    Mario Rodríguez-Artalejo

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© 2002 Springer-Verlag Berlin Heidelberg

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López-Fraguas, F.J., Sánchez-Hernández, J. (2002). Narrowing Failure in Functional Logic Programming. In: Hu, Z., Rodríguez-Artalejo, M. (eds) Functional and Logic Programming. FLOPS 2002. Lecture Notes in Computer Science, vol 2441. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45788-7_13

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  • DOI: https://doi.org/10.1007/3-540-45788-7_13

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-44233-2

  • Online ISBN: 978-3-540-45788-6

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