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.
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.