Type Inference with Recursive Type Equations

  • Authors:
  • Mario Coppo

  • Affiliations:
  • -

  • Venue:
  • FoSSaCS '01 Proceedings of the 4th International Conference on Foundations of Software Science and Computation Structures
  • Year:
  • 2001
  • Efficient Type Matching

    FoSSaCS '02 Proceedings of the 5th International Conference on Foundations of Software Science and Computation Structures

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Abstract

This paper discusses decidability and existence of principal types in type assignment systems for λ-terms in which types are considered modulo an equivalence relation induced by a set of type equations. There are two interesting ways of defining such equivalence, an initial and a final one. A suitable transformation will allow to treat both in an uniform way.