Resolution with Order and Selection for Hybrid Logics

  • Authors:
  • Carlos Areces;Daniel Gorín

  • Affiliations:
  • Talaris Group, INRIA Nancy Grand Est, Nancy, France;Departamento de Computación, FCEyN, Universidad de Buenos Aires, Buenos Aires, Argentina

  • Venue:
  • Journal of Automated Reasoning
  • Year:
  • 2011

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Abstract

We investigate labeled resolution calculi for hybrid logics with inference rules restricted via selection functions and orders. We start by providing a sound and refutationally complete calculus for the hybrid logic $\mathcal{H}(@,{\downarrow},\mathsf{A})$ , even under restrictions by selection functions and orders. Then, by imposing further restrictions in the original calculus, we develop a sound, complete and terminating calculus for the $\mathcal{H}(@)$ sublanguage. The proof scheme we use to show refutational completeness of these calculi is an adaptation of a standard completeness proof for saturation-based calculi for first-order logic that guarantees completeness even under redundancy elimination. In fact, one of the contributions of this article is to show that the general framework of saturation-based proving for first-order logic with equality can be naturally adapted to saturation-based calculi for other languages, in particular modal and hybrid logics.