New Directions in Instantiation-Based Theorem Proving

  • Authors:
  • Harald Ganzinger;Konstantin Korovin

  • Affiliations:
  • -;-

  • Venue:
  • LICS '03 Proceedings of the 18th Annual IEEE Symposium on Logic in Computer Science
  • Year:
  • 2003

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Abstract

We consider instantiation-based theorem provingwhereby instances of clauses are generated by certaininferences, and where inconsistency is detected bypropositional tests. We give a model construction proofof completeness by which restrictive inference systemsas well as admissible simplification techniques can bejustified. Another contribution of the paper are novelinference systems that allow one to also employ decisionprocedures for first-order fragments more complex thanpropositional logic. The decision procedure provides for anapproximative consistency test, and the instance generationinference system is a means of successively refining theapproximation.