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Proof step 2 from proof datasize-ls-samedata (previous step)

# buf0 = # buf1, datasize(buf0) < datasize(buf1), range=(buf0, 0, buf1, 0, datasize(buf1)) ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
⊦ datasize(buf) = datasize(buf, # buf)
Proof step 4:
# buf0 = # buf1, datasize(buf0, # buf1) < datasize(buf1, # buf1), range=(buf0, 0, buf1, 0, datasize(buf1, # buf1)) ⊦

Rule argument

Additional information

Used simplifier rules: datasize: ⊦ datasize(buf) = datasize(buf, # buf);% ⊦ m < n → n ≠ 0; (s)%f: ⊦ m < n → n ≠ 0; (forward) from specification nat-basic