923 — Tracked Kernel Lifting Isolates One Stable Quadratic Source Witness
Entry 917 typed the seven-dimensional triangle-wall sector as a collective marked-incidence Rees grade. An ordinary quotient of length-three and shifted length-two images is zero, so it cannot produce representatives. The correct construction retains the first-order nullhomotopies.
Let
The exact finite-field elimination now:
- selects a source-labelled basis of ;
- tracks source coefficients through the length-two system;
- extracts the genuine first-normal lifts;
- lifts both the -basis and those nullhomotopies coherently into length three;
- reduces the remaining grade-zero rows against that filtered baseline.
At ambient degree 10, the baseline has rank
and exactly seven further rows survive. At degree 11 the corresponding rank is
and again exactly seven survive.
At both cutoffs the source-family split is
The marked witness is identical at both cutoffs:
The six principal witnesses are not cutoff-stable. Their monomials are
Thus the tracked seven-basis separates into one cutoff-stable interior source witness and a six-dimensional moving principal tail. This does not yet prove that the stable witness alone defines a cutoff-independent quotient class: the six moving representatives may mix with it under transition between ambient truncations. The next test is the explicit truncation map on the tracked seven-planes.
Durable verification
- tracked sparse engine:
research/benincasa/marici-gm/src/bin/triangle_wall_dual_rank.rs; - packet:
research/nima/triangle-wall-dual-relation-rank.json; - field: ;
- allocator claim:
seqclaim-eb1776e23d67642774315977.