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Pittsburgh Functional Programming Book Club featuring Category Theory for Programmers by Bartosz Milewski
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[Jul 20th] Talking Points - Chapter 10 Natural Transformations
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chiroptical
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4 years ago
chiroptical
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4 years ago
Introduction, "commuting squares", and the "natural isomorphism"
Natural transformations in Haskell and parametric polymorphism
Confused by
alpha :: Reader () a -> Maybe a
, How is a
Nothing
ever possible?
The Functor Category and
Cat
2-Category
Objects: categories
1-morphisms: Functors between categories
2-morphisms: Natural transformations between Functors
alpha :: Reader () a -> Maybe a
, How is aNothing
ever possible?