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Proof step 2 from proof bits2int-zero-ls (previous step)

⊦ bytes = [], bits2int(bytes2bits(bytes)) < 0 ↔ ¬ 0 ≤ b2i(bytes.first)

User applied rule structural induction

And obtained the following new goals

Proof step 3:
bytes0 = [] ∨ (bits2int(bytes2bits(bytes0)) < 0 ↔ ¬ 0 ≤ b2i(bytes0.first)) ⊦ by + bytes0 = [], bits2int(bytes2bits(by + bytes0)) < 0 ↔ ¬ 0 ≤ b2i((by + bytes0).first)

Rule argument

indvar: bytes

Additional information

Used simplifier rules: bytelist freely generated by [], +;;