Clausal Tableaux for Hybrid PDL

  • Authors:
  • Mark Kaminski;Gert Smolka

  • Affiliations:
  • Saarland University, Saarbrücken, Germany;Saarland University, Saarbrücken, Germany

  • Venue:
  • Electronic Notes in Theoretical Computer Science (ENTCS)
  • Year:
  • 2011

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Abstract

We present the first tableau-based decision procedure for PDL with nominals. The procedure is based on a prefix-free clausal tableau system designed as a basis for gracefully degrading reasoners. The clausal system factorizes reasoning into regular, propositional, and modal reasoning. This yields a modular decision procedure and pays off in transparent correctness proofs.