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Proof step 1 from proof subarray-copy-elim (conclusion)

m1 + n ≤ # ar1 ⊦ n1 ≤ n → subarray(copy(ar0, m0, ar1, m1, n), m1, n1) = subarray(ar0, m0, n1)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
n1 ≤ n, m1 + n ≤ # ar1 ⊦ copy(copy(ar0, m0, ar1, m1, n), m1, mkarray(n1), 0, n1) = copy(ar0, m0, mkarray(n1), 0, n1)

Rule argument

Additional information

Used simplifier rules: Subarray: ⊦ subarray(ar, m, n) = copy(ar, m, mkarray(n), 0, n);