A mechanical proof of the Church-Rosser theorem

  • Authors:
  • N. Shankar

  • Affiliations:
  • Stanford Univ., Stanford, CA

  • Venue:
  • Journal of the ACM (JACM)
  • Year:
  • 1988

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Abstract

The Church-Rosser theorem is a celebrated metamathematical result on the lambda calculus. We describe a formalization and proof of the Church-Rosser theorem that was carried out with the Boyer-Moore theorem prover. The proof presented in this paper is based on that of Tait and Martin-Löf. The mechanical proof illustrates the effective use of the Boyer-Moore theorem prover in proof checking difficult metamathematical proofs.