  The variety\ $\mathbf{V(L_0^{dm}, L_0^{dm}, L_0^{dm}, L_0^{dm}, L_0^{dm}, L_0^{dm}, L_0^{dm}, L_0^{dm}})$ is defined, modulo\ $\mathbf{RDMSH0}$, by  -   $x{^*}' \approx  x^{**}$  -   $ (0 \to 0)^{**} \approx 0$.  The variety $\mathbf{V(L_0^{dm}, L_0^{dm}, L_0^{dm}, L_0^{dm}, D_0})$ is\ defined, modulo $\mathbf{RDMSH0}$, by  -   $(0 \to 0)