Galois embedding from polymorphic types into existential types

  • Authors:
  • Ken-etsu Fujita

  • Affiliations:
  • Department of Computer Science, Gunma University, Kiryu, Japan

  • Venue:
  • TLCA'05 Proceedings of the 7th international conference on Typed Lambda Calculi and Applications
  • Year:
  • 2005

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Abstract

We show that there exist bijective translations between polymorphic λ-calculus and a subsystem of minimal logic with existential types, which form a Galois connection and moreover a Galois embedding. From a programming point of view, this result means that polymorphic functions can be represented by abstract data types.