Proposal: Num instance for tuples
lemming at henning-thielemann.de
Thu Oct 18 19:57:55 CEST 2012
On Thu, 18 Oct 2012, Brent Yorgey wrote:
> I am +1 for this proposal, but only as long as these instances are not
> exported by the Prelude. They are useful when you know you want them
> but will confuse newbies -- based on evidence from #haskell, where
> lambdabot has such instances in scope.
Please no orphan instances - I think a pair type that supports arithmetics
deserves a custom type.
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