__   __ __  __  ____   ___      _______________________________________________
||   || ||  || ||  || ||__      Hugs 98: Based on the Haskell 98 standard
||___|| ||__|| ||__||  __||     Copyright (c) 1994-2005
||---||         ___||           World Wide Web: http://haskell.org/hugs
||   ||                         Bugs: http://hackage.haskell.org/trac/hugs
||   || Version: Sep 2006       _______________________________________________

Haskell 98 mode: Restart with command line option -98 to enable extensions

Type :? for help
Main> 
Main> map f [2,3,4,5,6] where f x = x*x
[4,9,16,25,36]
Main> 
Main> :t map
map' :: (a -> b) -> [a] -> [b]
Main> 
Main> :t filter
filter :: (a -> Bool) -> [a] -> [a]
Main> 
Main> :r
Main> filterEven [1,2,3,4,5,6] where filterEven = filter even
[2,4,6]
Main> filterEven [1,2,3,4,5,6] where filterEven = filter' even
[2,4,6]
Main>