Someone HERE stated that there is mathematics associated with 'evolutionary' theory. Never heard anyone ever state that before.
This one took me aback a little. I would not have been surprised if you wanted to claim that the maths of evolutionary theory is all wrong; but to claim you've never heard someone say there is a maths of evolutionary theory after over a decade of arguing about this stuff is a bit... odd.
A lot of the basics of statistics were developed by evolutionary biologists. Probably the most important figure in the development of statistics is Ronald Fisher*; and the motivation behind a lot of the mathematical tools he developed was in making evolutionary theory more mathematically rigorous.
JBS Haldane's
A Mathematical Theory of Natural and Artificial Selection is public domain and
available online, being almost a century old. It's not light reading, but it's pretty dense on maths, if that's what you're looking for.
*my personal bias may be showing in this assessment.