HA + independent Lean evidence · Research, not Alpha admission

AP025 — approximation component decisions

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

Exact named statement

((forall d i a. (NatAtanhCoefficient(d,i,a)) \/ ~(NatAtanhCoefficient(d,i,a)))) /\ (((forall ab ac t N v. (NatHornerValue(ab,ac,t,N,v)) \/ ~(NatHornerValue(ab,ac,t,N,v)))) /\ ((forall k d s. (DyadicSqrt2(k,d,s)) \/ ~(DyadicSqrt2(k,d,s)))))

ND0446 — DyadicSqrt2 · ND0424 — NatAtanhCoefficient · ND0437 — NatHornerValue

Fully expanded target AST

Complete certificate and independent checks

146 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: 73143d6dbbcad9e7c4558786a63cf9abc8870be8c71abd9d934090ddb9501c21
Bundle SHA-256: 541015fd0e99e2c907df19bcb07a173646ac30354ddda32986fab3b496091d71

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.

CV032 · SQ001

Scope

constructively decide the actual individual logarithm coefficient Horner value and dyadic square root computation graphs for all inputs including invalid candidates without new induction or a complete CApprox verifier claim

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