Mass and external data

At nonzero mass, recompute every relevant graph, including D04, D05a, and D12 where mass enters the actual rules. Not every massless zero must become nonzero. List mass monomials and changed consistency maps before testing the old domain.

General off-shell momentum is distinct from general external index/polarization conventions. Construct the full ambient divergence before testing membership in the old 21-direction image. The exact old-domain criterion is

A failed membership test has a separator; adding columns is a disclosed domain revision.