It could not be done without Aristotle (https://arxiv.org/pdf/2510.01346), did you even read the links?

And this is Aristotle - https://aristotle.harmonic.fun/

It's an LLM.

"Aristotle integrates three main components: a Lean proof search system, an informal reasoning system that generates and formalizes lemmas, and a dedicated geometry solver"

It is far more than an LLM, and math != "language".