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Proof step 8 from proof datasize-empbuf (conclusion)

⊦ datasize(buf + mkempbuf(n)) = datasize(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(array-splice,buffer,append-a, ⊦ (buf + buf0) + buf1 = buf + buf0 + buf1) Csimpnamedseq(array-splice,buffer,emparray-len, ⊦ # mkempbuf(n) = n) Csimpnamedseq(array-splice,buffer,append-len, ⊦ #(buf + buf0) = # buf + # buf0)))]