List comprehensions

[Oliver Braun]

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* Rijk J. C. van Haaften <rjchaaft@cs.uu.nl> [2003-01-30 11:41 +0100]:

> Recently, I came accross this expression:
> [ x + y | x <- xs | y <- ys ]
                    ^
                    Put a comma ',' here.

Regards,
         Olli
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