Re: [Haskell-cafe] Questions about the Functor class and it's use in "Data types à la carte"

[Dominic Steinitz]

> keep in mind that Haskell "composition" (.)
> is not really composition in the category-theoretic
> sense, because it adds extra laziness. Use this

Do you have a counter-example of (.) not being function composition in
the categorical sense?