Model elimination without contrapositives

Baumgartner, Peter; Furbach, Ulrich

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Model elimination without contrapositives

Date

1994

Authors

Baumgartner, Peter

Furbach, Ulrich

Abstract

We present modifications of model elimination which do not necessitate the use of contrapositives. These restart model elimination calculi are proven sound and complete. The corresponding proof procedures are evaluated by a number of runtime experiments and they are compared to other well known provers. Finally we relate our results to other calculi, namely the connection method, modified problem reduction format and Near-Horn Prolog.