HA + independent Lean evidence · Research, not Alpha admission

SQ008 — dyadic sqrt2 modulus

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

Exact named statement

forall k l d s q t. DyadicSqrt2(k,d,s) ->
  DyadicSqrt2(k+l,q,t) ->
  (~d=0) /\ ((~q=0) /\ ((Le(s*q,t*d)) /\ (Le(t*d,s*q+q))))

PD0001 — Le · ND0446 — DyadicSqrt2

Fully expanded target AST

Complete certificate and independent checks

136 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: a431f58073293b4d6efa8d8122c194a4bcbaa3f8ad022a73b9f8d2a0b8182910
Bundle SHA-256: fa202c285e41ec0f1b6619dc5605fd748dba041a74efb3ee72cd9abbb5861f32

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.

SQ002 · SQ005 · SQ006 · SQ007

Scope

actual dyadic sqrt2 computations at ordered precisions have explicit positive denominators and cross multiplied error at most one coarse denominator reciprocal no analytic limit

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