On Thu, Jan 8, 2009 at 6:04 PM, Jeff Heard <jefferson.r.he...@gmail.com> wrote:
> ...
> How do I declare all Regions to be Eqs without putting it in the class
> body (since I define a function over all Regions that is independent
> of datatype that is an instance of Region)?

Would this be a solution?

class Eq a => Region a where
  ...

Cristiano
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