27 Mar
2014
27 Mar
'14
9:35 p.m.
If I write a function like this: f (x1,y1) (x2,y2) = (x1++x2,y1++y2) My understanding of typeclasses is just developing, but I notice this is a bit like "lifting" (++) into a tuple. Maybe there is some existing typeclass and a 2-tuple is already an instance of it? Like arrow? D