KI 2003: Advances in Artificial Intelligence

Volume 2821 of the series Lecture Notes in Computer Science pp 105-119

Towards a Systematic Account of Different Logic Programming Semantics

  • P. HitzlerAffiliated withDepartment of Computer Science, Dresden University of Technology

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In [1,2] a new methodology has been proposed which allows to derive uniform characterizations of different declarative semantics for logic programs with negation. One result from this work is that the well-founded semantics can formally be understood as a stratified version of the Fitting (or Kripke-Kleene) semantics. The constructions leading to this result, however, show a certain asymmetry which is not readily understood. We will study this situation here with the result that we will obtain a coherent picture of relations between different semantics.