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Decidability of the Clark's completion semantics for monadic programs and queries

Published online by Cambridge University Press:  16 December 2014

LEVON HAYKAZYAN
LEVON HAYKAZYAN*
Affiliation:
Mathematical Institute, University of Oxford, Woodstock Road, Oxford, OX2 6GG, UK (email: haykazyanl@maths.ox.ac.uk)
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Abstract

There are many different semantics for general logic programs (i.e. programs that use negation in the bodies of clauses). Most of these semantics are Turing complete (in a sense that can be made precise), implying that they are undecidable. To obtain decidability one needs to put additional restrictions on programs and queries. In logic programming it is natural to put restrictions on the underlying first-order language. In this note, we show the decidability of the Clark's completion semantics for monadic general programs and queries.

Keywords

monadic programsgeneral programsClark's completiondecidability
Type
Technical Note
Information
Theory and Practice of Logic Programming , Volume 15 , Issue 3 , May 2015 , pp. 402 - 412
Copyright
Copyright © Cambridge University Press 2014 

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