((P0 * P1 -* P2))(H), P0(H0), P1(H1), H0 ⊥ H, H1 ⊥ H0, H1 ⊥ H ⊦ P2(H1 ∪ H0 ∪ H)
Used simplifier rules: ⊦ H1 ⊥ H → (H0 ⊥ H1 ∪ H ↔ H0 ⊥ H1 ∧ H0 ⊥ H); (ws)