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Brandon Schneider c5638c5412 feat: PrimitiveMatrix — division-free matrix inversion via common denominator 
PrimEntry: exact rational arithmetic (num/den, no truncation).
All intermediate steps stay in ℤ. Single final division by det(A).

Key insight: A × adj(A) = det(A) × I is exact over ℤ.
Q16_16 version has 1-LSB error per entry (demonstrated by #eval).

Witnesses:
  Primitive: 1/3 + 1/6 = 32768 (exact 0.5)
  Q16_16:    div(1,3) + div(1,6) = 32767 (1 LSB error)

Restored det_self_inverse theorem (removed by subagent).
lake build: 3301 jobs, 0 errors
2026-05-28 18:07:56 -05:00
..
conversions/hardware WIP: accumulated changes 2026-05-25 16:24:21 -05:00
external/OTOM WIP: accumulated changes 2026-05-25 16:24:21 -05:00
LeanGPT Remove legacy Python prototypes superseded by Lean formalization 2026-05-19 15:34:17 +00:00
Semantics feat: PrimitiveMatrix — division-free matrix inversion via common denominator 2026-05-28 18:07:56 -05:00
CHAIN_ALL_REVIEW_REPORT.md initial: sovereign research stack (consolidated, weightless, and lfs-optimized) 2026-05-04 18:11:36 -05:00