Integration of Equality Reasoning into the Disconnection Calculus

  • Authors:
  • Reinhold Letz;Gernot Stenz

  • Affiliations:
  • -;-

  • Venue:
  • TABLEAUX '02 Proceedings of the International Conference on Automated Reasoning with Analytic Tableaux and Related Methods
  • Year:
  • 2002

Quantified Score

Hi-index 0.00

Visualization

Abstract

Equality handling has always been a traditional weakness of tableau calculi because the typical refinements of those calculi were not compatible with the most successful methods for equality handling. The disconnection tableau calculus represents a new confluent framework well suited for the integration of a large class of different methods for equality handling, as we demonstrate in this paper. We consider both saturation based and goal-oriented methods for equality handling. We also show how specialized equality handling can affect the properties of the calculus at the example of the well-known regularity condition. All the presented approaches of equality handling have been implemented in the theorem prover DCTP and we present the results of an experimental evaluation.