Re: [Haskell-cafe] data EitherF m1 m2 a = LeftF (m1 a) | RightF (m2 a)

Ah great, thanks! Am 5/18/15 um 2:45 PM schrieb Roman Cheplyaka:

It's right in transformers:

https://hackage.haskell.org/package/transformers-0.4.3.0/docs/Data-Functor-S...

On 18/05/15 15:32, Daniel van den Eijkel wrote:

...

Hi,

I am wondering if there is a library with a datatype like the following defined:

data EitherF m1 m2 a = LeftF (m1 a) | RightF (m2 a)

I could not find anything with Hoogle. Does anybody know such a thing?

Thank you & best, Daniel

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