Currying subtraction

Question

If we want to map a function that increases every element of a range by 1, we could write

map (\\x -> x + 1) [1..5]

but I guess most peo

Answer 1

I don't like subtract because it's confusingly backwards. I'd suggest

minus :: Num n => n -> n -> n
minus = (-)
infixl 6 `minus`

Then you can write

map (`minus` 1) [1..5]