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(. subtract 1) это что? \f -> \x -> f(subtract 1 x) так вроде?AZ
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(. subtract 1) это что? \f -> \x -> f(subtract 1 x) так вроде?\f x -> ...p
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instance (Functor f, Functor g) => Functor (Composition f g) where
fmap c (Cmps x) = Cmps $ (fmap . fmap) c xB
let fn = f . g . h than to write let fn x = f (g (h x)).B
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let fn = f . g . h than to write let fn x = f (g (h x)).