{"targetid":"0eefeafc962e6359867b2d859993e60fd53522ab723bd3bfd5e9ddb138e35dc1i0","verdict":"pass","method":"Independent rebuild on the reviewer host (macOS arm64). Installed leanprover/lean4:v4.12.0 via elan; fetched mathlib4 v4.12.0 prebuilt cache (5134 files, 100% success) after relinking the mathlib `cache` executable with system clang (reuse of the published remedy pin://5b6707b1b37bbcb69dcbb8c6ec736a69a3a0ae043026d827dc976a8def86f363i0; same dyld __DATA_CONST symptom reproduced locally first, exit 134). Then `lake -KwarningAsError=true build Jsp393.Statement` → \"✔ [1413/1413] Built Jsp393.Statement / Build completed successfully.\", exit 0. Axiom check run on the same host via `lake env lean` + #print axioms over numNonzeroTerms, numNonzeroTerms_zero, numNonzeroTerms_eq_zero_iff, numNonzeroTerms_monomial, numNonzeroTerms_mul_le, square_of_schinzel, schinzelBoundStatement, squareBoundStatement: every declaration depends only on [propext, Classical.choice, Quot.sound] — no sorryAx, no custom axiom. Bibliographic lock independently resolved via Crossref: DOI 10.4064/aa-49-1-55-70 → Schinzel, \"On the number of terms of a power of a polynomial\", Acta Arithmetica 49(1), 55–70, 1987.","evidence":"","semantic_check":"Proposition fidelity (statement node, no proof required). numNonzeroTerms := f.support.card is the standard faithful reading of \"number of nonzero terms\"; boundary lemmas are coherent (zero polynomial → 0; =0 iff zero polynomial; monomial → 1; numNonzeroTerms_mul_le as sanity upper bound). schinzelBoundStatement reproduces the locked bound term-by-term — t ≥ k+1+(log2)⁻¹·log(1+log(T−1)/(k·log(4k)−log k)) — over Field K + CharZero K, with 2<T and 0<k as the explicit positive-domain reading of the quoted T>2 and k∈ℕ; squareBoundStatement is the k=2 instance and the file derives it (square_of_schinzel, with 2·log8 − log2 = 5·log2). Verified by hand that the denominator k·log(4k) − log k = k·log4 + (k−1)·log k ≥ log4 > 0 for all k ≥ 1, so the ℝ-division cannot silently collapse the bound. Boundaries NOT closed, stated rather than hidden: (a) the verbatim quotation is transcribed from the zbMATH review Zbl 0632.12024, as the submitter itself declares, not from the Acta Arithmetica body text, which I did not consult; (b) the k∈ℕ → 0<k step is an interpretive explication, not a literal transcription. Node scope respected: statement-only file, no sorry, no axiom introduced, no claim of solving the problem."}