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Proof step 2 from proof sorted-entry-lt-post (previous step)

zbrar[n + m1] = mkzentry(key, adr), m1 < m, sorted(zbrar, n, m) ⊦ zbrar[n].key < key ↔ 0 ≠ m1

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
zbrar[n + m1] = mkzentry(key, adr), m1 < m, sorted(zbrar, n, m) ⊦ zbrar[n].key < key ↔ 0 ≠ m1

Rule argument

Additional information

Used simplifier rules: ⊦ m < n → n ≠ 0; (s)%f: ⊦ m < n → n ≠ 0; (forward) from specification nat-basic