Hello Alberto, Friday, October 24, 2008, 12:20:39 PM, you wrote:
>>instance R a => A a >>instance S a => A a > > Duplicate instance declarations > Why? because you may write in other module instance R Int instance S Int if class A includes functions, it may be problematic to determine which implementation (via R or via S) to use -- Best regards, Bulat mailto:[EMAIL PROTECTED] _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
