Two Natural Deduction Systems for Hybrid Logic: A Comparison

  • Authors:
  • Torben Braü/ner

  • Affiliations:
  • Department of Computer Science, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark/ E-mail: torben@ruc.dk

  • Venue:
  • Journal of Logic, Language and Information
  • Year:
  • 2004

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Abstract

In this paper two different natural deduction systems forhybrid logic are compared and contrasted.One of the systems was originally given by the author of the presentpaper whereasthe other system under consideration is a modifiedversion of a natural deductionsystem given by Jerry Seligman.We give translations in both directions between the systems,and moreover, we devise a set of reduction rules forthe latter system bytranslation of already known reduction rules for the former system.