| ((r =>_ * !(me, O1, P) * P0))(H1 ++ r) ↔ ((!(me, O1, P) * P0))(H1), ((!(me, O1, P) * P0))(H1), rely(me, O1(r; me), H1 ++ r, O2, H2) ⊦ r = null, ((!(me, O2, r =>_ * P) * P0))(H1 ++ r), r ∈ H1 |
((!(me, O1, P) * P0))(H1), ((r =>_ * !(me, O1, P) * P0))(H1 ++ r), rely(me, O1(r; me), H1 ++ r, O2, H2) ⊦ r = null, ((!(me, O2, r =>_ * P) * P0))(H1 ++ r), r ∈ H1