| rs1 ∩ rs0 = ∅, R[rs0, f, g], a[r => o1][rs1, f(r; o1), g] ⊦ (a[r => f(r)] * R)[rs1 ∪ rs0, f, g], r ∈ rs0, a[r => f(r)][rs1, f, g] ∧ R[rs0, f, g] |
rs1 ∩ rs0 = ∅, a[r => o1][rs1, f(r; o1), g], R[rs0, f, g] ⊦ (a[r => f(r)] * R)[rs1 ∪ rs0, f, g], a[r => f(r)][rs1, f, g], r ∈ rs0