yatra tvekāntena pratīyamānārthaviparītākārāvasāyahetutvameva, avasāyānutpādakatvaṃ vā, tatra tasya sarvārthārthino 'pravartanād aprāmāṇyameveti yuktaṃ vaktuṃ nānyatra
However, where [perception] either causes determination of a form entirely contrary to the object being cognized, or causes no determination at all - there, because it does not lead to activity for someone seeking any object, it is reasonable to say that only there is [perception] invalid, not elsewhere.