tatra viruddho hetuḥ yadavisaṃvādi tat pramāṇaṃ yathā pratyakṣaṃ, saṃvādi ca trirūpaliṅgajanyaṃ jñānam iti svabhāvahetuḥ /
In this case, the contradictory reason is [as follows]: "What is non-contradictory is valid, as for instance direct perception, and the cognition produced by a three-featured mark is non-contradictory" - this is a reason based on essential nature.