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Proof step 34 from proof copy2append (previous step)

# ar1 - n1 = n2 + m, n1 + m ≤ # ar1, n0 + m ≤ # ar0, m + n1 ≤ # ar1 ⊦ copy(ar0, n0, ar1, n1, m) = subarray(ar1, 0, n1) + subarray(ar0, n0, m) + subarray(ar1, n1 + m, n2)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Rule argument

spec: nat inst: name: elim-sub seq: n ≤ m ⊦ n0 = m - n ↔ m = n0 + n subst: [m, n, n0] → [# ar1, n1, n] flags:

Additional information

[Concretesimprules((Csimpnamedseq(append-a,,, ⊦ (ar + ar0) + ar1 = ar + ar0 + ar1) Csimpnamedseq(nat,,lels-01, ⊦ ¬ m ≤ n ↔ n < m) Csimpnamedforward(nat-basic1,,f, ⊦ m < n → n ≠ 0) Csimpnamedforward(nat,,fle-01, ⊦ m ≤ n ∧ n < n0 → m < n0) Csimpnamedseq(nat-basic2,,l-02, ⊦ ¬ m + n < m) Csimpnamedseq(nat-basic2,,a, ⊦ (m + n0) + n1 = m + n0 + n1) Csimpnamedseq(nat-basic2,,c, ⊦ m + n = n + m) Csimpnamedseq(array-copy,,subarray-elim, # ar = n ⊦ subarray(ar, 0, n) = ar) Csimpelim(n ≤ m ⊦ n0 = m - n ↔ m = n0 + n))), Extraterms((# ar1n1n))]