>hurr durr it's both

The problem is that Math as we're calling it is really 2 separate things. Because it's two separate entities it can be both invented and discovered, one of each.

Math can be the numbering system we use, and in this sense it can best be described as a language.

Math can also be the specific things that we do with this numbering system, like addition, subtraction, division, square roots. This 2nd would exist in the universe even if it was never described with our numerical system of language. Therefore the things you can do with math is discovered.

In order to avoid confusion math should be 2 separate words, not one.