[Haskell-cafe] Deepest polymorphic functor

Eduard Sergeev Eduard.Sergeev at gmail.com
Thu Jul 30 18:10:21 EDT 2009




Ryan Ingram wrote:
> 
> What would this do with
> 
>   instance Num a => Num [a]
> 
> in scope?
> 

It should work not only for Num a anyway (like normal Functor would do) but
if you could give me an example, how exactly could I use Num a here...
-- 
View this message in context: http://www.nabble.com/Deepest-polymorphic-functor-tp24709303p24748175.html
Sent from the Haskell - Haskell-Cafe mailing list archive at Nabble.com.



More information about the Haskell-Cafe mailing list