Proposal: merge either into transformers

Henning Thielemann lemming at
Sun Dec 9 18:58:14 CET 2012

On Sun, 9 Dec 2012, Ross Paterson wrote:

> A more economical variation on this idea would be to lift these classes
> to functors, e.g.
> class ShowF f where
>    showsPrecF :: Show a => Int -> f a -> ShowS

Yes, that's much better.

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