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Proof step 11 from proof checksum-append-left (conclusion)

⊦ n ≤ # buf0 → checksum(buf0 + buf1, n) = checksum(buf0, n)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: inst: name: checksum-prefix seq: ⊦ n ≤ # buf0 ∧ n ≤ # buf1 ∧ subarray(buf0, 0, n) = subarray(buf1, 0, n) → checksum(buf0, n) = checksum(buf1, n) subst: [buf1, n, buf0] → [buf0, n, buf0 + buf1] flags: rewrite, current

Additional information

[Concretesimprules(()), Extraterms((buf0nbuf0 + buf1))]