>let f x xs = [x:xs,xs]
> :t f
f :: a -> [a] -> [[a]]
>:t (>>=) .f
(>>=) .f :: a -> ([[a]] -> [a] -> b) -> [a] -> b
> :t (flip (>>=) .f)
(flip (>>=) .f) :: a -> [[a]] -> [[a]]
Why is the type of `(>>=) .f` and `flip (>>=) .f` so different ?
Sincerely!
-----
fac n = let { f = foldr (*) 1 [1..n] } in f
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