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What does it mean?

Name: Anonymous 2010-04-11 23:00

(:).(++) :: [a] -> [[a] -> [a]] -> [[a] -> [a]]

Name: Anonymous 2010-04-12 3:27

The function (:) . (++) is equivalent to \f fs -> (f ++) : fs. Do you see why?

Maybe you meant to liftM2 ((:) .)?

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