On a Generalised Logicality Theorem

  • Authors:
  • Marc Aiguier;Diane Bahrami;Catherine Dubois

  • Affiliations:
  • -;-;-

  • Venue:
  • AISC '02/Calculemus '02 Proceedings of the Joint International Conferences on Artificial Intelligence, Automated Reasoning, and Symbolic Computation
  • Year:
  • 2002

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Abstract

In this paper, the correspondence between derivability (syntactic consequences obtained from 驴) and convertibility in rewriting (驴), the so-called logicality, is studied in a generic way (i.e. logic-independent). This is achieved by giving simple conditions to characterise logics where (bidirectional) rewriting can be applied. These conditions are based on a property defined on proof trees, that we call semi-commutation. Then, we show that the convertibility relation obtained via semi-commutation is equivalent to the inference relation 驴 of the logic under consideration.