nbe-kripke-racket/README.md
2025-05-12 00:58:49 -04:00

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# untyped NbE in racket
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An implementation of normalization by evaluation loosely based on [A
Denotational Account of Untyped Normalization by
Evaluation](https://www.brics.dk/RS/03/40/BRICS-RS-03-40.pdf) and
[Abel's thesis on NbE](https://www.cse.chalmers.se/~abela/habil.pdf).
Since the implementation is untyped, the `normalize` function only
gives you β-normal forms. However, you can get a little bit of
βη-equivalence by invoking Coquand's algorithm (`η-eq?`) on
β-normal forms.