trilakṣaṇa iti kuto 'vyabhicāraḥ / dṛśyasyādṛṣṭirupalabdhilakṣaṇaprāptānupalabdhiḥ //
How can there be infallibility when it is not three-featured? The non-perception of the perceptible is the non-apprehension of what fulfills the conditions of perceptibility.