| rs1 ∩ rs0 = ∅, R[rs0, cf, af], ls(r0, x0)(H), ∀ r. r ∈ rs1 → af(r) = o, ∀ r1. (r1 ∈ mk(rs1, cf) ↔ r1 ∈ (∅ ++ r)[r, a × r0] ∪ H) ∧ (r1 ∈ mk(rs1, cf) → mk(rs1, cf)[r1] = ((∅ ++ r)[r, a × r0] ∪ H)[r1]) ⊦ r = null, r ∈ H, r ∈ rs1, r ∈ rs0 |
rs1 ∩ rs0 = ∅, R[rs0, cf, af], ls(r0, x0)(H), ∀ r. r ∈ rs1 → af(r) = o, ∀ r1. (r1 ∈ rs1 ↔ r1 ∈ (∅ ++ r)[r, a × r0] ∪ H) ∧ (r1 ∈ rs1 → cf(r1) = ((∅ ++ r)[r, a × r0] ∪ H)[r1]) ⊦ r = null, r ∈ rs0, r ∈ rs1, r ∈ H
Used simplifier rules: ⊦ r ∈ rs → mk(rs, cf)[r] = cf(r); (s)% ⊦ r ∈ mk(rs, cf) ↔ r ∈ rs; (s)