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Right, you'll want to say eg fmap :: (a -> b) -> Val a -> Val b Tom El Jul 17, 2015, a las 12:23, Imants Cekusins escribió:
...InstanceSigs Thank you Tom. this sig does not work though: fmap ::(a -> b) -> f a -> f b
InstanceSigs
Thank you Tom.
this sig does not work though: fmap ::(a -> b) -> f a -> f b
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