10 lines
289 B
Markdown
10 lines
289 B
Markdown
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Fix Composition (1/2)
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Goal, find: `◎ :: (b -> F c) -> (a -> F b) -> (a -> F c)`
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`f :: a -> F b`, `g :: b -> F c`:
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- `(g ◎ f) x` ???
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- First apply `f` to `x` ⇒ `f x :: F b`
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- Then how to apply `g` properly to an element of type `F b`?
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