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Proof step 4 from proof bytes2int-rec-01 (previous step)

⊦ bytes2int(bytes0 + by ') = bytes2int(bytes0) * 256 + band(b2i(by), 255), bytes0 = []

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 5:
⊦ bytes ≠ [] → bytes2int(bytes + by ') = bytes2int(bytes) * 256 + band(b2i(by), 255)

Rule argument

name: bytes2int-rec rotate: F subst: [by, bytes] → [by, bytes0]

Additional information

Used simplifier rules: ⊦ i * j = j * i;% ⊦ band(i, j) = band(j, i);% ⊦ i + j = j + i; Used terms: by, bytes0