Nikolai Weibull wrote:

>Well, it depends on how you would want it.  In Prolog (don't remember
>how Haskell does it), all variable beginning with a lowline are ignored
>- it adds some documentational value.  Perhaps only _ is enough,
>        nikolai
>
>  
>
Offtopic: I thought those are just any old variables in Prolog. I know 
for 25% certain SWI-Prolog uses variables starting as underscores as 
anonymous variables it creates when getting itself into an infinite loop 
fit ;P

David