śabdapramāṇa
शब्दशक्तिप्रकाशिका (Śabdaśaktiprakāśikā (Part-1))
In this book Jagadīa Tarkālaṃkāra presents a detailed analysis of various aspects of śabdapramāṇa from the perspective of Navya-Nyāya. The book starts with a critical assessment of the views of Vaiśeṣika and Mīmāṃsaka philosophers with regard to the veridicality of śabda as a pramāṇa. This is followed by a discourse on the nature of meaningful words, the nature of prākṛti, pratya, nipāta. A definition of a sentence is formulated. The relation between word and meaning in its different aspects has been presented. The book ends with a discussion on the nature and different kinds of samāsa.
शब्दशक्तिप्रकाशिका (Śabdaśaktiprakāśikā (Vol-1))
Śabdaśaktiprakāśikā is an important text written by Jagadīśa Tarkālaṃkāra containing an analysis of śabda pramāna following the Navya-Nyāya tradition. This work is a defence of many of the theses of Gaṅgeśa, the author of Tattvacintāmaṇi. In many places, the views of Bhatṛhari and Srīpatidatta, the author of Kalapa-pariśiṣta, have been critically assessed and defended. The author offers a detailed analysis of how the knowledge of the meaning of a sentence is generated through the presence of the elements like ākāṁṣkā, yogyatā and āsatti. Since the meaning of a word is defined in terms of śakti, a question arises with regard to the locus of śakti. Bhāṭṭa Mīmāṁsakas hold that śakti stays in the universal. Jagadīśa refutes this thesis of the Mīmāṁsakas. The author also refutes the thesis that the locus of śakti is the individual object, a view that is propagated by Raghunātha Śiromaṇi. Jagadīśa defends the view that combines both the insights that the locus of śakti is the individual object and the locus of śakti is the universal. In this book, Jagadīśa presents an analysis of the nature of lakṣanā. In this work we also find an analysis of how ākaṁkṣā, yogyatā and āsatti could be treated as the cause of understanding the meaning of a sentence. Jagadīśa, however, refutes the view that the knowledge of tātparya is the cause of understanding the meaning of a sentence, instead proposes the view that prakaraṇajñāna is the cause of understanding the meaning of a sentence. Thus in the present work the author, after defending śabdapramāṇa as an independent pramāṇa, offers his analysis of the ways of generating linguistic understanding.