Re: [Haskell-cafe] list comprehension doesn't work

1. Does the order of conditions affect the result at all?

Conditions, I don't believe so, the ordering/placement of bindings though can effect the results a great deal. When I say bindings, I mean something that involves a <-

2. The "," means AND or &&, right? So how do you write OR || instead? E.g z<-[1..10] OR z<-[100..110].

For that scenario I'd just append the lists, z <- [1..10]++[100..110], if you wanted an or in conditions, you'd just use ||

Allthough I tried it, but it says isProduct and isSquer are not in Scope, so I should define them first in WHERE-Clause right?

Yep, eg listPairs = [...] where isSquare = ... isProduct = ... -- Danny Gratzer