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Proof step 7 from proof bytes2int-first-lez (previous step)

¬ 0 ≤ bytes2int(int2bytes(i).first ' + int2bytes(i).rest), b2i(int2bytes(i).first) < 0, 0 ≤ i ⊦

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 8:
⊦ bytes ≠ [] → bytes.first ' + bytes.rest = bytes

Rule argument

seq: ⊦ bytes ≠ [] → bytes.first ' + bytes.rest = bytes subst: [bytes] → [int2bytes(i)] rotate: F spec: list inst: bytelist name: fr

Additional information

Used simplifier rules: int2bytes-empty: ⊦ int2bytes(i) ≠ [];%int2bytes-empty: ⊦ int2bytes(i) ≠ [];%int2int: ⊦ bytes2int(int2bytes(i)) = i;% ⊦ ¬ i ≤ j ↔ j < i;% ⊦ i ≤ j → (¬ ¬ j < i ↔ false); Used terms: int2bytes(i)