Semantics of Input-Consuming Logic Programs

  • Authors:
  • Annalisa Bossi;Sandro Etalle;Sabina Rossi

  • Affiliations:
  • -;-;-

  • Venue:
  • CL '00 Proceedings of the First International Conference on Computational Logic
  • Year:
  • 2000

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Abstract

Input-consuming programs are logic programs with an additional restriction on the selectability (actually, on the resolvability) of atoms. This class of programs arguably allows to model logic programs employing a dynamic selection rule and constructs such as delay declarations: as shown also in [5], a large number of them are actually input-consuming. In this paper we show that - under some syntactic restrictions - the S-semantics of a program is correct and fully abstract also for input-consuming programs. This allows us to conclude that for a large class of programs employing delay declarations there exists a model-theoretic semantics which is equivalent to the operational one.