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Proof step 47 from proof bin-heap-inv-write-other (previous step)

lpt[m7] = mklp(m3, m8, lpf2, m9), lpt[n] = mklp(m0, m1, lpf0, m2), lpt[n, mklp(n0, n1, lpf1, n2)][m7] = mklp(m4, m5, lpf, m6), kar[m9] = key-index(natkey, m7), keyset(bin-heap(kar, m)) = gc-heap(lpt, nx, # lpt), m7 = n, 2exp-size(# kar), m7 < # lpt, n < # lpt, m9 < m, m9 < # kar, heap-order(kar, m), no-dups-idx(kar, m), m ≤ # kar ⊦ lpf0 = LP_GROUP_NODES, m6 = m9

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 48:
lpt[n] = mklp(m0, m1, lpf0, m2), kar[m2] = key-index(natkey, n), keyset(bin-heap(kar, m)) = gc-heap(lpt, nx, # lpt), 2exp-size(# kar), m2 < m, n < # lpt, m2 < # kar, heap-order(kar, m), no-dups-idx(kar, m), m ≤ # kar ⊦ lpf0 = LP_GROUP_NODES, m6 = m2

Rule argument

Additional information

Used simplifier rules: lf-02: ⊦ m < n ∧ m = n0 → n0 < n; (forward) from specification nat-basic%fle: ⊦ m < n ∧ n ≤ n0 → m < n0; (forward) from specification nat%⊦ mklp(m, m0, lpf, m1) = mklp(m2, m3, lpf0, m4) ↔ m = m2 ∧ m0 = m3 ∧ lpf = lpf0 ∧ m1 = m4; (ws)% ⊦ m < # lpt → lpt[m, lp][m] = lp; (s)