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Proof step 3 from proof datasize-le-fwd (conclusion)

⊦ m ≤ datasize(buf) → m ≤ # buf

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 1:
⊦ datasize(buf) = datasize(buf, # buf)

Rule argument

Additional information

[Concretesimprules((Csimpnamedseq(datasize,,, ⊦ datasize(buf) = datasize(buf, # buf)) Csimpnamedseq(datasize-is-smaller-help,,, ⊦ ¬ n < datasize(buf, n)) Csimpnamedforward(nat-basic1,,f, ⊦ m < n → n ≠ 0) Csimpnamedforward(nat,,fle, ⊦ m < n ∧ n ≤ n0 → m < n0) Csimpnamedseq(nat,,lels-01, ⊦ ¬ m ≤ n ↔ n < m)))]