On Fri, Oct 09, 2009 at 04:45:01PM +0200, Henning Thielemann wrote: > Recently I wondered, why Foldable is superclass of Traversable, > since I have examples where 'traverse' makes sense, but 'fold' not. > > http://www.haskell.org/pipermail/libraries/2009-February/011361.html
That would be surprising, since fold can be defined in terms of traverse. The link doesn't seem to contain any such examples. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
