Essence of Nyāya p182

p182

sādhyaṃ pakṣo vivakṣitaḥ | sādhyadṛṣṭāntayordharmavikalpādutkarṣāpakarṣavikalpa samā ityubhayasādhyatvācca sādhyasama iti sabandhaḥ | utkarṣāpakarṣavikalpaśabdeṣu bhāve ghañ, sādhyaśabdeṣu bhāve kṛtyaḥ | tadayamarthaḥ pakṣadṛṣṭāntayordharmasya vikalpānnaiścikāyadotkarṣa prasañjayati tadotkarṣasamaḥ, yadā cāpakarṣaṃ tadāpakarṣa samastathā sādhyadṛṣṭāntayordharmasya mūrttatvāmūrttatvādervikalpanānnityatvānityatvavi kalpaṃ yadā prasañjayati tadā vikalpasamaḥ, yadā ca sādhyadṛṣṭāntayordharmavikalpā dubhayasya sādhyatvamapi prasajyata ityabhidhāya tato dṛṣṭāntasya sādhyatve ko hetu ko vā dṛṣṭānta iti prasañjayati tadā sādhyasamaḥ | ubhayasādhyatvācceti cakā reṇa dharmavikalpaḥ samuccīyate hetuhetumadbhāve ca sabandhaḥ | sūtraṃ vivṛṇoti |