Context
The earlier quotient enforced the valuation selecting x, but equality also forces N to equal the 2-adic valuation of the entire left side. That second gate removes a false two-dimensional freedom.
Proof or evidence
For the ten nonrigid rows, shifting y by the current exponent period changes the next 2-adic digit because v2(3^L-1) is exact. Each v-bit therefore has a unique y-bit lift.
Verification notes
Independent C++ and Python implementations reconstruct every lift through e=22 and verify 2,048 states per row with bijective v-projection.
Limitations
- The theorem concerns the 21 rows inherited from one normalized positive-type-II quotient.
- A 2-adic graph alone does not exclude its states; the aligned odd-prime certificate is FPRD-IC-T21.
- No external review or novelty determination is recorded.