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Proof step 5 from proof is-encoded-unique (previous step)

is-encoded(vtbl1, buf), ∃ buf0, buf1, buf2. buf = buf0 + buf1 + buf2 ∧ is-encoded(# vtbl0, buf0) ∧ is-encoded-rec(vtbl0, buf1) ⊦ vtbl0 = vtbl1

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 6:
# buf1 = # vtbl0 * (ENCODED_VOLID_SIZE + ENCODED_NAT_SIZE), # buf2 = ENCODED_NAT_SIZE, is-encoded(# vtbl0, buf2), is-encoded(vtbl1, buf2 + buf1 + buf0), is-encoded-rec(vtbl0, buf1) ⊦ vtbl0 = vtbl1

Rule argument

Additional information

Used simplifier rules: is-encoded-rec-size: ⊦ is-encoded-rec(vtbl, buf) → # buf = # vtbl * (ENCODED_VOLID_SIZE + ENCODED_NAT_SIZE);%is-encoded-size: ⊦ is-encoded(n, buf) → # buf = ENCODED_NAT_SIZE; (forward) from specification encoding-fixed-size[encoding-nat]