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Proof step 3 from proof abs-gstore-avol-change-other (previous step)

lpt[n] = mklp(n0, n1, lpf, n2) ⊦ (∀ n0. (n0 < # lpt ∧ lpt[n0].flags = LP_GROUP_NODES ↔ n0 ∈ gstore) ∧ (n0 ∈ gstore ∧ ¬ n0 ∈ ginval → abs-leb(avol[n, aleb][n0], gstore[n0], lpt[n0])) ∧ (n0 ∈ gstore → lpt[n0].ref-size = gstore[n0].ref-size)) ↔ (∀ n. (n < # lpt ∧ lpt[n].flags = LP_GROUP_NODES ↔ n ∈ gstore) ∧ (n ∈ gstore ∧ ¬ n ∈ ginval → abs-leb(avol[n], gstore[n], lpt[n])) ∧ (n ∈ gstore → lpt[n].ref-size = gstore[n].ref-size)), lpf = LP_GROUP_NODES

Heuristic pl case distinction applied rule case distinction

And obtained the following new goals

Rule argument

pos: right 1

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