[Haskell-cafe] Re: Comparing GADTs for Eq and Ord
ashley at semantic.org
Mon Sep 15 22:09:13 EDT 2008
Ryan Ingram wrote:
> There are many papers that talk about using GADTs to reify types in
> this fashion to allow safe typecasting. They generally all rely on
> the "base" GADT, "TEq"; every other GADT can be defined in terms of
> TEq and existential types.
Ah, yes. See my paper "Witnesses and Open Witnesses"
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