M.7 Covariance and Ward-compatibility constraints

Ultralocal Lorentz scalars $P_1=\int {\eta }^{\mu \alpha }{\eta }^{\nu \beta }{h}_{\mu \nu }{h}_{\alpha \beta }$ and $P_2=\int ({\mathrm{tr}}_{\eta }h{)}^2$, and the matched line $P_1-\frac{89}{140}{P}_2$, are annihilated by all six generators.

matrix: solutions, constraint rank, cokernel.