[Haskell-beginners] Re: permuting a list

Felipe Lessa felipe.lessa at gmail.com
Fri Feb 13 04:29:48 EST 2009

On Fri, Feb 13, 2009 at 7:23 AM, Jan Snajder <jan.snajder at fer.hr> wrote:
> Why do I need 'forall a' ? Aren't type variables implicitly universaly
> quantified?

You don't need it, it's just a matter of style. Some prefer to make it
explicit, others not. I think it is only useful when you have lots of
existentials nearby.


More information about the Beginners mailing list