Created
November 4, 2011 06:47
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foldl and foldr
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| foldl :: (b -> a -> b) -> b -> [a] -> b | |
| foldl _ z [] = z | |
| foldl f z (x:xs) = foldl f (f z x) xs | |
| foldr :: (a -> b -> b) -> b -> [a] -> b | |
| foldr _ z [] = z | |
| foldr f z (x:xs) = f x (foldr f z xs) |
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