[Haskell-cafe] Ambiguous type signature in class declaration

[Bo Herlin]

Benjamin Franksen wrote:

(lots of information...)

> 
> HTH,
> Ben

Thank you, very generous indeed. This WILL certanly help, once i have 
learned more of the basics ;-) I have to try out this 
functional-dependencies-thing before i understand everything you have typed.

Thanks!
/Bo