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Proof step 2 from proof fix-last (previous step)

⊦ bytes = [], n = 0, fix(n, bytes).last = bytes.last

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ # bytes ≥ n → fix(n, bytes) = lastn(n, bytes)
Proof step 4:
¬ # bytes ≥ n ⊦ bytes = [], n = 0, fix(n, bytes).last = bytes.last
Proof step 10:
# bytes ≥ n ⊦ bytes = [], n = 0, lastn(n, bytes).last = bytes.last

Rule argument

name: fix-longer rotate: F subst: [bytes, n] → [bytes, n]

Additional information

Used terms: bytes, n