15 lines
830 B
Markdown
15 lines
830 B
Markdown
# Kripke-style untyped NbE in racket
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[](https://woodpecker.electriclam.com/repos/4)
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An implementation of normalization by evaluation loosely based on [A
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Denotational Account of Untyped Normalization by
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Evaluation](https://www.brics.dk/RS/03/40/BRICS-RS-03-40.pdf) and
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[Abel's thesis on NbE](https://www.cse.chalmers.se/~abela/habil.pdf).
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Since the implementation is untyped, the `normalize` function only
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gives you $\beta$-normal forms. However, you can get a little bit of
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$\beta\eta$-equivalence by invoking Coquand's algorithm (`η-eq?`) on
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$\beta$-normal forms.
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I'm hoping to expand the repository into a benchmark suite where I can
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visualize the performance trade-off of type-directed NbE compared to
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untyped NbE composed with Coquand's algorithm.
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