| (n0 ∈ ns ⊃ mklp(m, LEB_SIZE, lpf, m1);mklp(m, m0, lpf, m1)) = mklp(m2, m3, LP_GROUP_NODES, m4), lpt[n0] = mklp(m, m0, lpf, m1), gc-heap(lpt.mapIndices(ns, λ lp. lp.size:= LEB_SIZE), nx, n0) = gc-heap(lpt, nx, n0), n0 < # lpt ⊦ gc-heap(lpt, nx, n0) ++ key-index(m2, n0) = gc-heap(lpt, nx, n0) ∪ (lpf = LP_GROUP_NODES ⊃ ∅ ++ key-index(m, n0);∅), n0 ∈ nx |
(n0 ∈ ns ⊃ mklp(m, LEB_SIZE, lpf, m1);mklp(m, m0, lpf, m1)) = mklp(m2, m3, LP_GROUP_NODES, m4), lpt[n0] = mklp(m, m0, lpf, m1), gc-heap(lpt.mapIndices(ns, λ lp. lp.size:= LEB_SIZE), nx, n0) = gc-heap(lpt, nx, n0), lpf = LP_GROUP_NODES, n0 < # lpt ⊦ gc-heap(lpt, nx, n0) ++ key-index(m2, n0) = gc-heap(lpt, nx, n0) ∪ (∅ ++ key-index(m, n0)), n0 ∈ nx
(n0 ∈ ns ⊃ mklp(m, LEB_SIZE, lpf, m1);mklp(m, m0, lpf, m1)) = mklp(m2, m3, LP_GROUP_NODES, m4), lpt[n0] = mklp(m, m0, lpf, m1), gc-heap(lpt.mapIndices(ns, λ lp. lp.size:= LEB_SIZE), nx, n0) = gc-heap(lpt, nx, n0), n0 < # lpt ⊦ gc-heap(lpt, nx, n0) ++ key-index(m2, n0) = gc-heap(lpt, nx, n0) ∪ ∅, lpf = LP_GROUP_NODES, n0 ∈ nx