[Haskell-cafe] MonadPlus

Rich Neswold rich.neswold at gmail.com
Fri May 9 15:47:38 EDT 2008

On Fri, May 9, 2008 at 2:39 PM, Andrew Coppin <andrewcoppin at btinternet.com>

> [In a somewhat unrelated question... I saw some code the other day that
> used Either as if it were a monad. And yet, I don't see an instance given in
> the standard libraries - even though there should be one. I can see Functor
> (Either a), but not Monad (Either a) or even Monad (Either String)...]

It's used in the Error Monad.


JID: rich at neswold.homeunix.net
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