Partial function application

I wonder if it is useful to make partial function application proposal in elm?
Consider function fun a b c = a - b - c
If second and third parameters are known before first one I have to write function something like this and then invoke new function with the first parameter of original one:
(\x -> fun x 2 1) 3
It would be more compact if one could write:
(fun _ 2 1) 3