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Proof step 2 from proof valid-eraseqp-invalidate (previous step)

m < # apebs, valid-eraseq(apebs, q) ⊦ valid-eraseq(apebs[m, apeb], q), valid-peb(apeb)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
m < # apebs, valid-eraseq(apebs, q) ⊦ valid-eraseq(apebs[m, apeb], q), valid-peb(apeb)

Rule argument

Additional information

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