Term Equational Systems and Logics

  • Authors:
  • Marcelo Fiore;Chung-Kil Hur

  • Affiliations:
  • Computer Laboratory, University of Cambridge, Cambridge, UK;Computer Laboratory, University of Cambridge, Cambridge, UK

  • Venue:
  • Electronic Notes in Theoretical Computer Science (ENTCS)
  • Year:
  • 2008

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Abstract

We introduce an abstract general notion of system of equations between terms, called Term Equational System, and develop a sound logical deduction system, called Term Equational Logic, for equational reasoning. Further, we give an analysis of algebraic free constructions that together with an internal completeness result may be used to synthesise complete equational logics. Indeed, as an application, we synthesise a sound and complete nominal equational logic, called Synthetic Nominal Equational Logic, based on the category of Nominal Sets.