| # gndx = # lax, n0 ≤ m0 ⊦ n ∈ gstore ∧ gstore[n] = groupblock(gndx, lax, n0) → nodes(gstore ↓, ginval) ⊆ nodes(gstore ↓[n, groupblock(gndx + gnd ', lax + ladr ', m0) ↓], ginval) |
# gndx = # lax, gstore[n] = groupblock(gndx, lax, n0), n ∈ gstore, n0 ≤ m0 ⊦ nodes(gstore ↓, ginval) ⊆ nodes(gstore ↓[n, groupblock(gndx + gnd ', lax + ladr ', m0) ↓], ginval)