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Proof step 7 from proof bytes2bytes-fix (previous step)

∀ bytes0. # bytes0 < # bytes → true → bytes0 = [] ∨ fix(# bytes0, int2bytes(bytes2int(bytes0))) = bytes0 ⊦ fix(# bytes, int2bytes(bytes2int(bytes))) = bytes, bytes = [], b2i(bytes.first) ≠ 0 ∧ b2i(bytes.first) ≠ ~1

User applied rule insert elim lemma

And obtained the following new goals

Rule argument

seq: ⊦ bytes ≠ [] → (by = bytes.first ∧ bytes0 = bytes.rest ↔ bytes = by + bytes0) subst: [bytes, by, bytes0] → [bytes, by, bytes1] rotate: T spec: list-data inst: bytelist name: elim-1

Additional information

Used simplifier rules: ⊦ bytes ≠ [] → (by = bytes.first ∧ bytes0 = bytes.rest ↔ bytes = by + bytes0); (elim) Used terms: bytes, by, bytes1