Within-family affine audit
If the Majority contrast is structural, it should remain directionally coherent after conditioning on exact affine truth-table families and c5 branches.
Diagnostic work, exact algebra and local capabilities are not treated as end-to-end mining advantage.
What was tested?
If the Majority contrast is structural, it should remain directionally coherent after conditioning on exact affine truth-table families and c5 branches.
Why the test is meaningful
Exact truth-mask families control for Boolean function shape. A contrast that disappears or changes across families is distribution-sensitive and cannot support a universal mechanism claim.
family(f)=canonical 16-lane truth maskΔ_{family,c5}=E[N|survivor,family,c5]−E[N|non-survivor,family,c5]universal mechanism requires coherent within-family replicationHow it was tested
Group records by exact affine family and c5, calculate product, shell and combined nonlinear support for all cells, then repeat the complete audit on the fresh cohort without removing sparse or unfavorable cells.
What happened
All masks were semantically exact. Three families appeared in the original cohort and two in the fresh cohort. Within-family differences were heterogeneous and distribution-sensitive; the canonical synthesis closed the Majority branch rather than promoting a selector.
Exactness and statistical controls
The audit reported every family and cell, including zero-count and low-count cells. Fresh-family support differed from original support, which is itself evidence against a universal pooled conclusion.
What the result means
The earlier Majority signal is not stable enough to guide candidate work. Closing this branch is a negative scientific result that narrows the search without claiming that all Majority structure is useless.
Limitations
- Some exact families are absent from the fresh cohort.
- Cell means are unstable when counts are small.
- Closure applies to this registered mechanism and interface only.
Evidence trail
Canonicalize every truth mask, freeze family labels before outcome comparison, publish all cell sizes and repeat the same within-family audit on an independent cohort.
Canonical variants
SUBENGINE-V38ASUBENGINE-V38BSUBENGINE-V38CSource: internally audited canonical reports. Local filesystem structure, private headers and operational identifiers are excluded from publication.