| # lpt0 = # lpt, lpt0[n1].flags = LP_GROUP_NODES, lpt[n] = mklp(n0, m, lpf, n2), lpt[n, mklp(m0, m, lpf, m2)][n1] = mklp(m1, m3, lpf0, m4), lpf0 = LP_GROUP_NODES, n1 < # lpt, n < # lpt, ∀ n. n < # lpt ∧ lpt0[n].flags = LP_GROUP_NODES ∧ lpt[n].flags = LP_GROUP_NODES ∧ ¬ n ∈ nx → lpt[n].size = lpt0[n].size ⊦ m3 = lpt0[n1].size, n1 ∈ nx |
# lpt0 = # lpt, lpt0[n1].flags = LP_GROUP_NODES, lpt[n, mklp(m0, m, lpf, m2)][n1] = mklp(m1, m3, LP_GROUP_NODES, m4), lpt[n] = mklp(n0, m, lpf, n2), n < # lpt, n1 < # lpt, ∀ n. n < # lpt ∧ lpt0[n].flags = LP_GROUP_NODES ∧ lpt[n].flags = LP_GROUP_NODES ∧ ¬ n ∈ nx → lpt[n].size = lpt0[n].size ⊦ m3 = lpt0[n1].size, n1 ∈ nx