tatra prayogaḥ yo gavarṇasso 'tyantaniṣkṛṣṭagatvādhāro na bhavati, yathā khakārādivarṇaḥ, varṇaścāyaṃ gakāra iti viruddhavyāptopalabdhiḥ / gatvādhāratvaviruddhena kila varṇatvasya vyāptatvāt /
Here is the application: That which is the letter ga cannot be completely separated from the substrate of ga-ness, just as [in the case of] the letter kha and others; and this ga is a letter - thus there is perception of what is pervasively connected with the contrary, because letter-hood is indeed pervaded by what is contrary to being a substrate of ga-ness.