Yes, for instance to be able to use functions as number. Or to be able to use constructive real numbers as numbers, since equality is not computable.
-- Lennart On Thu, Aug 5, 2010 at 4:17 AM, Ivan Lazar Miljenovic <ivan.miljeno...@gmail.com> wrote: > On 5 August 2010 10:15, Lennart Augustsson <lenn...@augustsson.net> wrote: >> You're right. It's bad to have toRational in Real. It's also bad to >> have Show and Eq as superclasses to Num. > > I understand why it's bad to have Show as a superclass, but why Eq? > Because it stops you from using functions as numbers, etc. ? > > > -- > Ivan Lazar Miljenovic > ivan.miljeno...@gmail.com > IvanMiljenovic.wordpress.com > _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
