# LIB2-247 — Withdrawn proof and zero-parameter status of the muon-to-tau ratio

- 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 earlier charged-lepton account classified the muon-to-tau ratio as proved and carrying zero free parameters.

## Caution

The typing is withdrawn while the ratio remains a structural loaded correspondence with its numerical reproduction intact.

## Primary source

Paper 2, §3.2, Former proof/parameter classification withdrawn, PDF p.34: "Both ingredients were previously typed Proved, and the formula was cited as carrying zero free parameters. That typing is withdrawn."

## Machine

- url: /library-v2/LIB2-247/
- content_sha256: 18ce8d3f3aa95c154b315a21656eced4a695aa0127cb3d9a687509e7db7f4583
- candidate_ids: C2-018 C2-056

## Freshness

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