| (n0 ∈ ns ⊃ mklp(m, LEB_SIZE, lpf, m1);mklp(m, m0, lpf, m1)) = mklp(m2, m3, lpf0, 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 ⊦ lpf0 = LP_GROUP_NODES, n0 ∈ nx, ∅ ++ key-index(m, n0) ⊆ gc-heap(lpt, nx, n0) |
(n0 ∈ ns ⊃ mklp(m, LEB_SIZE, LP_GROUP_NODES, m1);mklp(m, m0, LP_GROUP_NODES, m1)) = mklp(m2, m3, lpf0, m4), lpt[n0] = mklp(m, m0, LP_GROUP_NODES, m1), gc-heap(lpt.mapIndices(ns, λ lp. lp.size:= LEB_SIZE), nx, n0) = gc-heap(lpt, nx, n0), n0 < # lpt ⊦ lpf0 = LP_GROUP_NODES, n0 ∈ nx, key-index(m, n0) ∈ gc-heap(lpt, nx, n0)
Used simplifier rules: ⊦ ∅ ++ ki ⊆ gchs ↔ ki ∈ gchs; (s)