HA + independent Lean evidence · Research, not Alpha admission

SI001 — signed product nonzero

Full irrationality (IR072/G121) remains open. Stable: 432. Alpha v35: 4,318. This checkpoint changes neither catalogue.

Exact named statement

∀ x. ∀ y. ∀ z. ∀ n. ∀ m. ∀ k. m + (x · n + y · z) = x · z + y · n + k → ¬x = y → ¬z = n → ¬m = k

No displayed named abbreviation.

Fully expanded target AST

Complete certificate and independent checks

34 actual local proof nodes. Each node carries its complete ordinary HA proof body.

Full canonical proof bundle · Original HA receipt · Independent Lean receipt

Target SHA-256: ee1a6a3a9dfc5f7d45c67d4a040a8ff0ccf2d4422f2ddc42e1fad69334c2d581
Bundle SHA-256: e0fd91506b33ed8a390173ed0599e8980e2c99ade59b24c37be92cf05bcfbc38

Checked statement containment

These exact targets occur inside this certificate. These links summarize containment, not direct dependency arrows; the downloadable bundle records every private lemma and ordered edge.

Scope

signed integer binary nonzero not quadratic finite IR046

None of these finite arithmetic statements closes an IR campaign parent. The analytic identification, interpolation and final positive irrationality certificate remain open.