In real world application I noticed a pattern that could be generalized to something like:
纯写:
class Profunctor p <= Zero p where
pzero :: forall a b. p a b -- such that `forall f g. dimap f g pzero == pzero`
It seems basic enough to have its own name in literature and libraries out there.
So what is its name? (Zero and pzero are made up by me.)
在文学和图书馆中,“零驾驶员”的抽象化通常称为“身份证明人”。 这些是物体上的特性,即每一物体本身和每一arrow。
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