trirūpaliṅgapūrvatvasyāpramāṇe kvacid apyabhāvāt / pramāṇe tu tatraiveṣṭavighātakṛtā janye jñāne bhāvāt /
Because the property of "being preceded by a three-featured mark" is not found in any invalid means of knowledge whatsoever, while in a valid means of knowledge it is present in that very cognition which is produced as subversive of what is desired [by the opponent].