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Proof step 21 from proof bits2bytes-mklist-02 (previous step)

n0 * 8 - 8 ≤ n0 * 8, 8 < n0 * 8, ∀ n1. n1 < n0 * 8 → n1 % 8 = 0 → n1 = 0 ∨ bits2bytes(mklist(true, n1)) = mklist(i2b(~1), n1 / 8) ⊦ bits2bytes(mklist(true, n0 * 8 - 8)) + i2b(bits2int(lastn(8, mklist(true, n0 * 8)))) ' = mklist(i2b(~1), n0), n0 = 0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: ⊦ m0 * m * n = (m0 * m) * n;% ⊦ m + n = n + m;% ⊦ (m + n0) + n1 = m + n0 + n1;% ⊦ m ≤ m + n;% ⊦ m * n ≤ m1 * n + n ↔ ¬ ¬(m ≤ m1 + 1 ∨ n = 0);%n0 ≤ n ⊦ n - n0 ≤ m ↔ n ≤ m + n0;% ⊦ m * n = n * m;% ⊦ m < n → m ≤ n;