# LIB2-048 — The selected Jordan vacuum pair has Gram determinant seven

- class: CLAIM · review_state: PUBLISHED · house_tier: not yet assigned
- labels as printed: math_status NOT_PRINTED · attachment NOT_PRINTED · scorecard tier word none (PDF p.153)
- basis: {"pdf_sha256_prefix": "b64ddcd9e16a6dcd", "release": "Rev33.1_S369"}

## Statement

For the selected Jordan pair (Jvac,Jvac#), the trace-form Gram determinant is 7.

## Caution

The Gram value does not derive the physical atmospheric registration and is distinct from imposing DET-7 as a selector premise.

## Primary source

Appendix B, §B.5, Structural support (a): DET-7, PDF p.159: "The Jordan pair (Jvac , Jvac # ) has Gram determinant 7, fixing the mismatch geometry and the normalization of the (1, 3) sector."

## Machine

- url: /library-v2/LIB2-048/
- content_sha256: fb2ce4548e60b84b6e8f0e72dd196c0347d2eb1b7e862d08650dab5aefdd8dd5
- candidate_ids: C2-003

## Freshness

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