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Proof step 7 from proof resize-twice (conclusion)

⊦ # ar ≤ n → resize(resize(ar, n), m) = resize(ar, m)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ ar1 = ar2 ↔ # ar1 = # ar2 ∧ (∀ n. n < # ar1 → ar1[n] = ar2[n])

Rule argument

spec: array inst: name: Extension seq: ⊦ ar1 = ar2 ↔ # ar1 = # ar2 ∧ (∀ n. n < # ar1 → ar1[n] = ar2[n]) subst: [ar2, ar1] → [resize(ar, m), resize(resize(ar, n), m)] flags: rewrite

Additional information

[Concretesimprules(()), Extraterms((resize(ar, m)resize(resize(ar, n), m)))]