The geometry of optimal lambda reduction

  • Authors:
  • Georges Gonthier;Martín Abadi;Jean-Jacques Lévy

  • Affiliations:
  • -;-;-

  • Venue:
  • POPL '92 Proceedings of the 19th ACM SIGPLAN-SIGACT symposium on Principles of programming languages
  • Year:
  • 1992

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Abstract

Lamping discovered an optimal graph-reduction implementation of the &lgr;-calculus. Simultaneously, Girard invented the geometry of interaction, a mathematical foundation for operational semantics. In this paper, we connect and explain the geometry of interaction and Lamping's graphs. The geometry of interaction provides a suitable semantic basis for explaining and improving Lamping's system. On the other hand, graphs similar to Lamping's provide a concrete representation of the geometry of interaction. Together, they offer a new understanding of computation, as well as ideas for efficient and correct implementations.