An induction principle for pure type systems

  • Authors:
  • Gilles Barthe;John Hatcliff;Morten Heine Bo Sørensen

  • Affiliations:
  • INRIA Sophia-Antipolis, Sophia-Antipolis Cedex, France;Kansas State Univ., Manhattan;DIKU, Copenhagen, Denmark

  • Venue:
  • Theoretical Computer Science
  • Year:
  • 2001

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Abstract

We present an induction principle for pure type systems and use that principle to define CPS translations and to solve the problem of expansion postponement for a large class of pure type systems. Our principle strengthens and generalises similar principles by Dowek et al. [12] and Barthe et al. [6], which have been respectively used to define &eegr;-long normal forms and CPS translations for the systems of Barendregt's λ-cube [2; 3]. Copyright 2001 Elsevier Science B.V.