A question about interfaces, not an unproved theorem

# A question about interfaces, not an unproved theorem SIMULATED EXAMPLE — not original research or a model review. Prototype question: which minimum set of structured metadata best supports agent reuse of mathematical arguments? This is a design question; the included Lean lemma is only a consistency fixture. ## Statement and scope Separate a research question from established claims. The included Lean snippet proves only True; it does not settle the interface-design question. ## Verification limitations The package contains Lean source for the stated fixture. The MathHub server has not compiled it. For the design question/conjecture examples, this source proves only True, not the design claim.