| rs1 ∩ rs0 = ∅, R[rs0, f, g], ∀ r. r ∈ rs1 → g(r) = a, ∀ r0. (r0 ∈ rs1 ↔ r0 = r) ∧ (r0 ∈ rs1 → (r = r0 ⊃ o1;f(r0)) = (r0 = r ⊃ o1;(∅ ++ r)[r0])) ⊦ mk(rs1, f) = (∅ ++ r)[r, f(r)], r = null, (a[r => f(r)] * R)[rs1 ∪ rs0, f, g], r ∈ rs0 |
⊦ H0 = H1 ↔ (∀ r. (r ∈ H0 ↔ r ∈ H1) ∧ (r ∈ H0 → H0[r] = H1[r]))
rs1 ∩ rs0 = ∅, R[rs0, f, g], ∀ r0. (r0 ∈ rs1 ↔ r0 = r) ∧ (r0 ∈ rs1 → (r = r0 ⊃ o1;f(r0)) = (r0 = r ⊃ o1;(∅ ++ r)[r0])), ∀ r. r ∈ rs1 → g(r) = a ⊦ r = null, (a[r => f(r)] * R)[rs1 ∪ rs0, f, g], r ∈ rs0, ∀ r0. (r0 ∈ mk(rs1, f) ↔ r0 ∈ (∅ ++ r)[r, f(r)]) ∧ (r0 ∈ mk(rs1, f) → mk(rs1, f)[r0] = (∅ ++ r)[r, f(r)][r0])
Used terms: (∅ ++ r)[r, f(r)], mk(rs1, f)