3 Jan
2016
3 Jan
'16
4:05 p.m.
Where does the infinity come from?
Here is composition signature: (.) http://hackage.haskell.org/package/base-4.8.1.0/docs/Prelude.html#v:. :: (b -> c) -> (a -> b) -> a -> c It looks like it is applicable to functions with 1 arg. Sum expects 2 args. I guess this explains why sum can not be passed to f