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Proof step 19 from proof range-extend (previous step)

range=(copy(ar, n, ar0, n0 + m0, m1), n0 + m0, ar1, n1 + m0, m1), range=(copy(ar, n, ar0, n0 + m0, m1), n0, ar1, n1, m0), n + m1 ≤ # ar, n0 + m0 + m1 ≤ # ar0 ⊦ n + m1 ≤ # ar ∧ (n1 + m0) + m1 ≤ # ar1 ∧ (∀ n2. n2 < m1 → ar[n + n2] = ar1[(n1 + m0) + n2])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 20:
range=(copy(ar, n, ar0, n0 + m0, m1), n0, ar1, n1, m0), range=(copy(ar, n, ar0, n0 + m0, m1), n0 + m0, ar1, n1 + m0, m1), n0 + m0 + m1 ≤ # ar0, n + m1 ≤ # ar ⊦ (n1 + m0) + m1 ≤ # ar1 ∧ (n2 < m1 → ar[n + n2] = ar1[(n1 + m0) + n2])

Proof step 19 from proof range-extend (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information