niṣedhāyāparastasyeti / tṛtīyānaṭpratipāditasya vidhirahitasya niṣedhāyetyarthaḥ /
"niṣedhāyāparasya" [means] for the negation of what has been expressed by the third negative particle [naṭ], [considered] apart from the positive [element].