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Proof step 3 from proof datasize-subarray0 (previous step)

m ≤ # buf ⊦ datasize(subarray(buf, 0, m), m) = datasize(buf, m)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 4:
⊦ m ≤ # buf ∧ m0 ≤ m → datasize(subarray(buf, 0, m), m0) = datasize(buf, m0)

Rule argument

spec: <toplevel> name: datasize-subarray0-h seq: ⊦ m ≤ # buf ∧ m0 ≤ m → datasize(subarray(buf, 0, m), m0) = datasize(buf, m0) subst: [m0, m, buf] → [m, m, buf] flags: <all paths>

Additional information

Used simplifier rules: ⊦ m ≤ m; (s) Used terms: m, m, buf