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Proof step 5 from proof range-copy-drop (previous step)

range=(ar2, n2, copy(ar, n, ar0, n0, m0), n1, m1), n0 + m0 ≤ # ar0, n + m0 ≤ # ar, n0 + m0 ≤ n1 ∨ n1 + m1 ≤ n0 ⊦ n2 + m1 ≤ # ar2 ∧ n1 + m1 ≤ # ar0 ∧ (∀ n. n < m1 → ar2[n2 + n] = ar0[n1 + n])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 6:
range=(ar2, n2, copy(ar, n, ar0, n0, m0), n1, m1), n + m0 ≤ # ar, n0 + m0 ≤ # ar0, n0 + m0 ≤ n1 ∨ n1 + m1 ≤ n0 ⊦ n2 + m1 ≤ # ar2 ∧ n1 + m1 ≤ # ar0 ∧ (n3 < m1 → ar2[n2 + n3] = ar0[n1 + n3])

Proof step 5 from proof range-copy-drop (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information