# LIB2-035 — The banked non-degenerate stability conditions leave an interior

- 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.171)
- basis: {"pdf_sha256_prefix": "b64ddcd9e16a6dcd", "release": "Rev33.1_S369"}

## Statement

The banked non-degenerate PSD/stability inequalities have non-empty interior, leaving a 6-dimensional feasible set before the scale quotient and a 5-dimensional set after it; they do not select a ray.

## Caution

Degenerate inequalities can encode equalities, so this result is not a universal ban on dimension-reducing inequality constraints.

## Primary source

Appendix E, §8, Corrected non-degenerate positivity argument, PDF p.178: "the feasible set is 6-dimensional before the scale quotient and 5- dimensional after it, and cannot select a ray."

## Machine

- url: /library-v2/LIB2-035/
- content_sha256: 4f2f1cde39cc082f4dbfcad0d84d333188aca6950370608df622b2e824b48a7a
- candidate_ids: C2-121

## Freshness

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