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Proof step 8 from proof fix-last (previous step)

# bytes < n, 0 ≤ bytes2int(bytes) ⊦ fix(n, bytes).last = bytes.last, bytes = []

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 9:
⊦ # bytes ≤ n ∧ 0 ≤ bytes2int(bytes) → fix(n, bytes) = mklist(i2b(0), n - # bytes) + bytes

Rule argument

name: fix-pos-le rotate: F subst: [bytes, n] → [bytes, n]

Additional information

Used simplifier rules: ⊦ (bytes + bytes0) + bytes1 = bytes + bytes0 + bytes1;% ⊦ bytes ≠ [] → (bytes0 + bytes).last = bytes.last;% ⊦ ¬ m ≤ n ↔ n < m;% ⊦ m < n → ¬ n < m;% ⊦ ¬ i ≤ j ↔ j < i;% ⊦ i ≤ j → (¬ ¬ j < i ↔ false); Used terms: bytes, n