[Haskell-beginners] Alternative

[Imants Cekusins]

>  something even simpler:​

cheers Oliver. asum *is* better.

how is it possible to (<|>) results in:


type Am m  = (Alternative m, Monad m)

(Am m, Am n) => (a -> m (n b)) -> [a] -> m (n b)

?

say, m (n b) is
IO (Maybe b)
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