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Proof step 34 from proof unmodified-payload (previous step)

BRANCH_SIZE = # zbrar, iast[adr] = indexnode(brar, bv1, nused), indexnode(brar, bv1, nused) = save(mkznode(rp, zbrar, bv1, false, nused)), load(brar[n]).entry?, n < nused, n < BRANCH_SIZE, sorted(zbrar, 0, nused), adr ∈ iast, nused ≤ BRANCH_SIZE ⊦ ∃ n0. n0 < nused ∧ zbrar[n0].entry? ∧ zbrar[n0].key = load(brar[n]).key

User applied rule exists right

And obtained the following new goals

Proof step 35:
BRANCH_SIZE = # zbrar, iast[adr] = indexnode(brar, bv1, nused), indexnode(brar, bv1, nused) = save(mkznode(rp, zbrar, bv1, false, nused)), load(brar[n]).entry?, n < BRANCH_SIZE, n < nused, sorted(zbrar, 0, nused), adr ∈ iast, nused ≤ BRANCH_SIZE ⊦ n < nused ∧ zbrar[n].entry? ∧ zbrar[n].key = load(brar[n]).key

Rule argument

pos: right 1 terms: n abort: F discard: T computed: T

Additional information

Used terms: n