| lpt.mapIndices(ns, λ lp. lp.size:= LEB_SIZE)[n] = mklp(m, m0, lpf, m1), lpt[n] = mklp(m2, m3, lpf0, m4), lpf0 = LP_GROUP_NODES, n < # lpt, n ∈ nx ⊦ lpf = LP_GROUP_NODES |
lpt[n] = mklp(m2, m3, LP_GROUP_NODES, m4), lpt.mapIndices(ns, λ lp. lp.size:= LEB_SIZE)[n] = mklp(m, m0, lpf, m1), n < # lpt, n ∈ nx ⊦ lpf = LP_GROUP_NODES