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Proof step 36 from proof fill2append (previous step)

# ar = n2 + n0 + n1, n0 + n1 ≤ # ar ⊦ fill(ar, a, n0, n1) = subarray(ar, 0, n0) + fill(mkarray(n1), a) + subarray(ar, n0 + n1, n2)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: array inst: name: Extension seq: ⊦ ar1 = ar2 ↔ # ar1 = # ar2 ∧ (∀ n. n < # ar1 → ar1[n] = ar2[n]) subst: [ar2, ar1] → [ subarray(ar, 0, n0) + fill(mkarray(n1), a) + subarray(ar, n0 + n1, n2), fill(ar, a, n0, n1)] flags: rewrite

Additional information

[Concretesimprules(()), Extraterms(( subarray(ar, 0, n0) + fill(mkarray(n1), a) + subarray(ar, n0 + n1, n2) fill(ar, a, n0, n1)))]