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Proof step 17 from proof keep-sorted (previous step)

zbr.key = zbrar[n0].key, n0 < # zbrar, n < # zbrar, sorted(zbrar, n + 1, m + 1), sorted(zbrar[n0, zbr], n + 1, m + 1) ⊦ zbrar[n].key < zbrar[n0, zbr][n + 1].key ↔ zbrar[n].key < zbrar[n + 1].key, n = n0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 18:
zbr.key = zbrar[n0].key, n < # zbrar, n0 < # zbrar, sorted(zbrar[n0, zbr], n + 1, m + 1), sorted(zbrar, n + 1, m + 1) ⊦ zbrar[n].key < zbrar[n0, zbr][n + 1].key ↔ zbrar[n].key < zbrar[n + 1].key, n = n0

Proof step 17 from proof keep-sorted (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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