Extensional normalisation and type-directed partial evaluation for typed lambda calculus with sums

  • Authors:
  • Vincent Balat;Roberto Di Cosmo;Marcelo Fiore

  • Affiliations:
  • PPS - Université Paris 7;PPS - Université Paris 7 and INRIA-Roquencourt;University of Cambridge

  • Venue:
  • Proceedings of the 31st ACM SIGPLAN-SIGACT symposium on Principles of programming languages
  • Year:
  • 2004

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Abstract

We present a notion of η-long β-normal term for the typed lambda calculus with sums and prove, using Grothendieck logical relations, that every term is equivalent to one in normal form. Based on this development we give the first type-directed partial evaluator that constructs %able to construct normal forms of terms in this calculus.