paryudāsātmakābhyāṃ cennābhyāṃ nityatvamiṣyate / tau tadbhāvātmakatvena vyapekṣeta svasādhanam //
If eternality is desired [to be proved] through these two [reasons] which are of the nature of relative negation, then, being of the nature of positive existence, they would require proof for themselves.