prayogaḥ yeyaṃ rūpādipratipattiḥ sā cakṣurādivyatiriktakāraṇāpekṣiṇī krameṇa jāyamānatvāt, rathādivad iti
The formal argument [is]: This cognition of form etc. depends on a cause distinct from the eye etc., because it arises successively, like [the perception of] a chariot etc.