⊦ ((P0 -* P1))(H) ↔ (∀ H1. H1 ⊥ H ∧ P0(H1) → P1(H1 ∪ H))
P0(H1), H1 ⊥ H0, ∀ H1. H1 ⊥ H0 ∧ P0(H1) → P1(H1 ∪ H0) ⊦ P1(H1 ∪ H0)
Used terms: H0, P1, P0