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A simple correctness proof for magic transformation

Published online by Cambridge University Press:  04 March 2011

WŁODZIMIERZ DRABENT*
Affiliation:
Institute of Computer Science, Polish Academy of Sciences, ul. Ordona 21, Pl – 01-237 Warszawa, Poland and Department of Computer and Information Science, Linköpings Universitet, S – 58183 Linköping, Sweden (e-mail: drabent@ipipan.waw.pl)

Abstract

The paper presents a simple and concise proof of correctness of the magic transformation. We believe that it may provide a useful example of formal reasoning about logic programs. The correctness property concerns the declarative semantics. The proof, however, refers to the operational semantics (LD-resolution) of the source programs. Its conciseness is due to applying a suitable proof method.

Type
Regular Papers
Copyright
Copyright © Cambridge University Press 2011

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