Question: Please imprement categorical product in C or Python like in haskell: fst :: (A,B) -> A fst (x, _) = x snd :: (A,B) ->
Please imprement categorical product in C or Python like in haskell:
fst :: (A,B) -> A fst (x, _) = x
snd :: (A,B) -> B snd (_, y) = y
f :: C -> A g :: C -> B
delta :: (C -> A) -> (C -> B) -> (C -> (A,B)) delta f g = \x -> (f x, g x)
h :: C -> (A,B) h = delta f g
These codes should make following statements true:
f == fst . h g == snd . h
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