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LPNMR
2004
Springer
13 years 10 months ago
Simplifying Logic Programs Under Uniform and Strong Equivalence
Abstract. We consider the simplification of logic programs under the stablemodel semantics, with respect to the notions of strong and uniform equivalence between logic programs, r...
Thomas Eiter, Michael Fink, Hans Tompits, Stefan W...
ASP
2003
Springer
13 years 9 months ago
Eliminating Disjunction from Propositional Logic Programs under Stable Model Preservation
Abstract. In general, disjunction is considered to add expressive power to propositional logic programs under stable model semantics, and to enlarge the range of problems which can...
Thomas Eiter, Michael Fink, Hans Tompits, Stefan W...
ICLP
2003
Springer
13 years 9 months ago
Uniform Equivalence of Logic Programs under the Stable Model Semantics
In recent research on nonmonotonic logic programming, repeatedly strong equivalence of logic programs P and Q has been considered, which holds if the programs P ∪ R and Q ∪ R h...
Thomas Eiter, Michael Fink
LPNMR
2007
Springer
13 years 10 months ago
A Common View on Strong, Uniform, and Other Notions of Equivalence in Answer-Set Programming
Logic programming under the answer-set semantics nowadays deals with numerous different notions of equivalence between programs. This is due to the fact that equivalence for substi...
Stefan Woltran
AMAI
2006
Springer
13 years 4 months ago
Strong and uniform equivalence of nonmonotonic theories - an algebraic approach
We show that the concepts of strong and uniform equivalence of logic programs eneralized to an abstract algebraic setting of operators on complete lattices. Our results imply char...
Miroslaw Truszczynski