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Proof step 3 from proof is-encoded-rec-size (previous step)

is-encoded-rec(vtbl, buf) ⊦ # buf = # vtbl * (ENCODED_VOLID_SIZE + ENCODED_NAT_SIZE)

User applied rule induction

And obtained the following new goals

Proof step 4:
is-encoded-rec(vtbl, buf), ∀ vtbl0, buf. # vtbl0 < # vtbl → is-encoded-rec(vtbl0, buf) → # buf = # vtbl0 * (ENCODED_VOLID_SIZE + ENCODED_NAT_SIZE) ⊦ # buf = # vtbl * (ENCODED_VOLID_SIZE + ENCODED_NAT_SIZE)

Rule argument

indvar: # vtbl wfpred: <

Additional information

Used simplifier rules: <; (wellfounded) Used terms: # vtbl