On Tue, 6 Jun 2006, Udo Stenzel wrote:

[EMAIL PROTECTED] wrote:
I need a functions which takes as argument a list of lists like this one:

[[1,2],[3],[4]]

and gives me a list of list with all the possible combinations like this one:

[[1,3,4],[2,3,4]]

sequence


I see, it is just
   sequence  ==  foldr (liftM2 (:)) (return [])
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