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Proof step 1 from proof fix-two-02 (conclusion)

⊦ fix(2, by ' + by0 ' + by1 ') = by0 ' + by1 '

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ # bytes ≥ n → fix(n, bytes) = lastn(n, bytes)

Rule argument

name: fix-longer rotate: F subst: [bytes, n] → [by ' + by0 ' + by1 ', 2]

Additional information

Used simplifier rules: ⊦ # by ' = 0 +1;% ⊦ #(bytes + bytes0) = # bytes + # bytes0;%0 < n ⊦ lastn((* n), bytes + by ') = lastn(n -1, bytes) + by ';% ⊦ lastn(1, bytes) = bytes.last ';% ⊦ (bytes + by ').last = by;% ⊦ (bytes + bytes0) + bytes1 = bytes + bytes0 + bytes1;% ⊦ bytes + bytes0 = bytes + bytes1 ↔ bytes0 = bytes1; Used terms: by ' + by0 ' + by1 ', 2