yadi hi bādhakādipratyayena prāmāṇyamapodyate, evaṃ sati bādhakādipratyayābhāvāt prāmāṇyaniścayo 'bhyupagataḥ syāt /
If validity is indeed negated by the cognition of annulment etc., then in such a case, the certainty of validity would be admitted [to arise] from the absence of cognition of annulment etc.