# LIB2-242 — Superseded trimaximal cosine-phase correction apparatus

- class: RETIRED · review_state: IN_REVIEW · 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 carried an erratum to a reported cos δ_TM1 value within the trimaximal (TM1) mixing apparatus; a header added later flags that apparatus as retired; the current print types δCP = −2π/√5 = −160.997° Derived-conditional (Rev29 re-tiering; the pre-Rev29 stamp was Theorem ⋆100).

## Caution

Supersession of the apparatus does not show that the historical erratum was mathematically incorrect.

## Primary source

Paper 5, §3, Retained leptonic-phase readout, PDF p.88: "δCP = −2π/ 5 = −160.997◦"

## Machine

- url: /library-v2/LIB2-242/
- content_sha256: 3551423bab7a7c0db2cabdb13529d5de304e40c7281a264aa080be5f8ee92099
- candidate_ids: C2-152

## Freshness

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