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A comment on Functional programming jargon in plain English. Parent comment
But if I provide the two typical examples Hom(A,) and Home(,A) and how they transport the arrows it starts to click.
There is also List which is a covariant functor. The stupid Home(unit,) which is the "identity" functor.
I could also add Hom(Bool,) which is the pair functor, ie Hom(Bool,A) is a tuple in AxA. A->AxA (or A->Him(Bool, A)) is a covariant functor.
Etc. Examples are the keys to understand the idea.
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But if I provide the two typical examples Hom(A,) and Home(,A) and how they transport the arrows it starts to click.
There is also List which is a covariant functor. The stupid Home(unit,) which is the "identity" functor.
I could also add Hom(Bool,) which is the pair functor, ie Hom(Bool,A) is a tuple in AxA. A->AxA (or A->Him(Bool, A)) is a covariant functor.
Etc. Examples are the keys to understand the idea.