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Proof step 5 from proof gc-heap-write-above (previous step)

m0 < # lpt, m0 < n, n < # lpt, m0 + 1 < # lpt, ∀ lpt, n, lp, nx. m0 < # lpt ∧ n < # lpt ∧ m0 ≤ n → gc-heap(lpt[n, lp], nx, m0) = gc-heap(lpt, nx, m0) ⊦ gc-heap(lpt[n, lp], nx, m0 + 1) = gc-heap(lpt, nx, m0) ∪ (¬ m0 ∈ nx ∧ lpt[m0].flags = LP_GROUP_NODES ⊃ ∅ ++ key-index(lpt[m0].ref-size, m0);∅)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 6:
lpt[m0] = mklp(m, m1, lpf, m2), m0 + 1 < # lpt, n < # lpt, m0 < n, m0 < # lpt, ∀ lpt, n, lp, nx. m0 < # lpt ∧ n < # lpt ∧ m0 ≤ n → gc-heap(lpt[n, lp], nx, m0) = gc-heap(lpt, nx, m0) ⊦ gc-heap(lpt[n, lp], nx, m0 + 1) = gc-heap(lpt, nx, m0) ∪ (¬ m0 ∈ nx ∧ lpf = LP_GROUP_NODES ⊃ ∅ ++ key-index(m, m0);∅)

Rule argument

spec: lprops name: elim seq: ⊦ ((m = lp.ref-size ∧ m0 = lp.size) ∧ lpf = lp.flags) ∧ m1 = lp.gcheapidx ↔ lp = mklp(m, m0, lpf, m1) subst: [lp, m, m0, lpf, m1] → [lpt[m0], m, m1, lpf, m2]

Additional information

Used simplifier rules: ⊦ ((m = lp.ref-size ∧ m0 = lp.size) ∧ lpf = lp.flags) ∧ m1 = lp.gcheapidx ↔ lp = mklp(m, m0, lpf, m1); (elim) Used terms: lpt[m0], m, m1, lpf, m2