If it was in Lean anyone could verify it instantly. That is the huge advantage of it. Manual math Proof verification labor might be the most limited resource ever.
I've gotten best results with LLMs generating Go, Java, and C# code as they have the best combination of strong type systems and fast or no compile times.
I can't imagine a better use case. Having 1 to 1 tutoring has always been a huge advantage for the wealthy and LLMs can allow far more people access to it. One-on-one instruction yields massive learning gains but is prohibitively expensive.
When generative AI can create such good fake images a valid c2pa linked to the source camera will become mandatory for an image to be considered authentic.