| mk(rs, f) = H0 ∪ H, P0(H0), P1(H), H0 ⊥ H, ∃ rs, f. H0 = mk(rs, f) ⊦ ∃ rs0, rs1. rs0 ∪ rs1 = rs ∧ rs0 ∩ rs1 = ∅ ∧ P0(mk(rs0, f)) ∧ P1(mk(rs1, f)) |
mk(rs, f) = mk(rs0, f0) ∪ H, P0(mk(rs0, f0)), P1(H), mk(rs0, f0) ⊥ H ⊦ ∃ rs0, rs1. rs0 ∪ rs1 = rs ∧ rs0 ∩ rs1 = ∅ ∧ P0(mk(rs0, f)) ∧ P1(mk(rs1, f))