Tableaux for lattices

  • Authors:
  • Georg Struth

  • Affiliations:
  • Department of Computer Science, The University of Sheffield, Sheffield, UK

  • Venue:
  • AMAST'06 Proceedings of the 11th international conference on Algebraic Methodology and Software Technology
  • Year:
  • 2006

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Abstract

We formally derive tableau calculi for various lattices. They solve the word problem for the free algebra in the respective class. They are developed in and integrated into the ordered resolution theorem proving framework as special-purpose procedures. Theory-specific and procedural information is included by rewriting techniques and by imposing the subformula property on the ordering constraints. Intended applications include modal logic and the automated proof support for set-based formal methods. Our algebraic study also contributes to the foundations of tableau and sequent calculi, explaining the connection of distributivity with the data-structure of sequents and with cut-elimination.