[eru]

You can't hallucinate a working lean proof.

[darkwater]

But you can hallucinate everything else.

[tempfile]

You absolutely can. How do you know your "working lean proof" actually proves the theorem you intended it to?

[lanstin]

One of the concerns of the new LLM made lean proofs is ensuring they are using standard MathLib formulations in the theorem, so (quoting something in I longer recall the source of) a Grothendieck scheme is indeed what the reader and world know as a Grothendieck scheme.

[eru]

You read the stated theorem?