[Haskell-cafe] Either instance of Monad?

Daniel Fischer daniel.is.fischer at googlemail.com
Wed Feb 23 14:29:46 CET 2011

On Wednesday 23 February 2011 14:14:46, Yves Parès wrote:
> The latest, I think :
> GHC 7.0.1,
> mtl-,
> base-

Hmm, that's exactly what I have. Weirder and weirder.
For the moment, I'm out of ideas.

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