On Tue, May 14, 2013 at 11:17 AM, John <knowledge1...@gmail.com> wrote:

> listPairs = [(a*b, y) | a <- [0..], b <- [0..], (a*b) > 5, (a*b) < 500,
> (y*y) < 1001, mod y x == 0]
>
> Now I have it as you said, however the compiler complains about all y and x
> and says they are NOT in scope.
>
> Why is it so? I can't see any problem with that...
>

I don't see any definitions of x or y there. (Note that you have replaced x
with a*b.)

-- 
brandon s allbery kf8nh                               sine nomine associates
allber...@gmail.com                                  ballb...@sinenomine.net
unix, openafs, kerberos, infrastructure, xmonad        http://sinenomine.net
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