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Proof step 7 from proof bytes2int-diff (previous step)

bytes2int(bytes0) = bytes2int(bytes), # bytes0 = 1, # bytes = 1, ∀ bytes0, bytes1. # bytes1 < 1 → # bytes0 = # bytes1 ∧ bytes2int(bytes0) = bytes2int(bytes1) → bytes0 = bytes1 ⊦ bytes0 = bytes, bytes = []

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 8:
⊦ # bytes = 1 ↔ bytes = bytes.first + []
Proof step 9:
bytes2int(bytes0) = bytes2int(bytes), # bytes0 = 1, bytes = bytes.first + [], ∀ bytes0, bytes1. # bytes1 < 1 → # bytes0 = # bytes1 ∧ bytes2int(bytes0) = bytes2int(bytes1) → bytes0 = bytes1 ⊦ bytes0 = bytes, bytes = []

Rule argument

seq: ⊦ # bytes = 1 ↔ bytes = bytes.first + [] subst: [bytes] → [bytes] rotate: F spec: list-data inst: bytelist name: lf-01

Additional information

Used terms: bytes