[Haskell-cafe] List comprehension

[Martijn van Steenbergen]

porges at porg.es wrote:
> -- or with Data.Function.Predicate (shameless plug) 
> <http://hackage.haskell.org/packages/archive/predicates/0.1/doc/html/Data-Function-Predicate.html>: 

Whoa, a function called "isn't", why is this the first time I see that? :-)

Martijn.