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A Combined Superposition and Model Evolution Calculus

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons45689

Waldmann,  Uwe
Automation of Logic, MPI for Informatics, Max Planck Society;

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Zitation

Baumgartner, P., & Waldmann, U. (2011). A Combined Superposition and Model Evolution Calculus. Journal of Automated Reasoning, 47(2), 191-227. doi:10.1007/s10817-010-9214-x.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0010-14E0-E
Zusammenfassung
We present a new calculus for first-order theorem proving with equality, ME+Sup, which generalizes both the Superposition calculus and the Model Evolution calculus (with equality) by integrating their inference rules and redundancy criteria in a non-trivial way. The main motivation is to combine the advantageous features of these two rather complementary calculi in a single framework. In particular, Model Evolution, as a lifted version of the propositional DPLL procedure, contributes a non-ground splitting rule that effectively permits to split a clause into \emph{non} variable disjoint subclauses. In the paper we present the calculus in detail. Our main result is its completeness under semantically justified redundancy criteria and simplification rules. We also show how under certain assumptions the model representation computed by a (finite and fair) derivation can be queried in an effective way.