A Proof of the Church-Rosser Theorem and its Representation in a Logical Framework
- 1 September 1992
- report
- Published by Defense Technical Information Center (DTIC)
Abstract
We give a detailed, informal proof of the Church-Rosser property for the untyped A-calculus and show its representation in LF. The proof is due to Tait and Martin-L6f and is based on the notion of parallel reduction. The representation employs higher-order abstract syntax and the judgments-as-types principle and takes advantage of term reconstruction as it is provided in the Elf implementation of LF. Proofs of meta-theorems are represented as higher- level judgments which relate sequences of reductions and conversions.Keywords
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