Re: [Haskell-cafe] How to understand the 'forall' ?

On Wed, Sep 2, 2009 at 11:00 AM, zaxis wrote:

seems a bit understanding, i still need to think it  for a while thanks!

I think I've understood the existential types thing, but I still can't put them to work when I think to a solution for a particular problem, i.e. it's not among my programming tools yet. Thank you Eugene, that was one of the most enlighting examples I say about existential types. Cristiano