flatmap

[Mats Cronqvist]

Robert Virding wrote:
> No, it should say append! Flatten/1 works recursively to completely 
> flatten an term while append/1 only does it at the top level.

   ouch. i just took for granted that append/1 was a typo, since clearly :> 
something called 'append' must take two arguments... my bad.

> The types don't really say much though, perhaps they should be:
> 
> Function = fun (A) -> [B]
> List1 = [A]
> Element = list()

   yeah, and Element isn't such a great name for a list either.

   mats