dūṣaṇa
NB 3.138-139: dūṣaṇāni nyūnatādyuktiḥ // ye pūrvaṃ nyūnatādayaḥ sādhanadoṣā uktās teṣām udbhāvanaṃ dūṣaṇaṃ tena pareṣṭārthasiddhipratibandhāt //
NPra 5: sādhanadoṣodbhāvanānii dūṣaṇāni // sādhanadoṣo nyūnatvam / pakṣadoṣaḥ pratyakṣādiviruddhatvam / hetudoṣo 'siddhānaikāntikaviruddhatvam / dṛṣṭāntadoṣaḥ sādhanadharmādyasiddhatvam / tasyodbhāvanaṃ prāśnikapratyāyanaṃ dūṣaṇam //
HTU 82: eta eva sarve pakṣahetudṛṣṭāntābhāsāḥ / vādinā sādhayitum iṣṭam arthaṃ na sādhyantīti sādhanābhāsā vādino bhavanti / evaṃ ca prativādinā dūṣaṇatvenopanyastā dūṣaṇāni bhavanti / pūrvapakṣavādino 'bhipretārthasiddhipratibandhāt / sādhanasya nyūnatodbhāvanam eva dūṣaṇasya lakṣaṇaṃ vibhajya pṛthag ucyate /
TSop 3.22. dūṣaṇā nyūnatādyuktiḥ / dūṣyate 'nayeti dūṣaṇā / ṇyāsaśrantho yuc / ādiśabdenāsiddhaviruddhānaikāntikāḥ / dṛṣṭāntadoṣāś ca gṛhyante ye pūrvaṃ nyūnatādayaḥ sādhanadoṣā uktās teṣām udbhāvanaṃ tena pareṣṭārthasiddhipratibandhāt / anena ca yad ahrīkeṇoktaṃ viparyayasādhanam eva dūṣaṇaṃ nānyad iti tad api parāstaṃ draṣṭavyam / na hi viparyayasādhanād eva dūṣaṇam / viruddhavat / api tu parasyābhipretaniścayapratibandhāt / niścayābhāvo vā bhavati niścayaviparyaya ity asty eva viparyayasiddhiḥ / |