Commentary on the Nyāyasūtra 11.p58

Nyāyabhāṣya (complete text) 11.p58

nanu pratītisiddhaṃ pramāṇādīnāṃ ṣoḍaśatvaṃ kimityanūdyata ityatastannirākaraṇīyām āśaḍkāmāha--nanviti|