# LIB2-004 — Retired house atmospheric assertion: sin²θ₂₃ = 4/7

- class: RETIRED · review_state: PUBLISHED · house_tier: not yet assigned
- labels as printed: math_status None · attachment None · scorecard tier word none (PDF p.None)
- basis: {"pdf_sha256_prefix": "b64ddcd9e16a6dcd", "release": "Rev33.1_S369"}

## Statement

The house entry presented an atmospheric squared-sine value as derived; its supplied source header now flags that assertion as superseded.

## Primary source

Paper 3, §5.4, Current replacement attachment, PDF p.64: "The current physical θ23 row is therefore Loaded-correspondence; the number and the internal theorem do not move."

## Machine

- url: /library-v2/LIB2-004/
- content_sha256: f4adb12a740c67bca6f6bde69250b256a7496864d26a50632d6814de66c2b9d4
- candidate_ids: C2-169

## Freshness

- BUILD_STAMP S371a · 2026-09-26T22:53Z · master 01d1a5873ede42f5 · cut 9dcc6ce9a8ee3e02
- Declared volatile fields (R36): BUILD_STAMP