The author has in this work clearly marked the principal stages of Indian logic in the vast period of about two thousand years beginning from 640 and has traced how from Anviksiki the science of debate Indian logic developed into the science of knowledge Pramanasastra and then into the science of dialectics Prakarana of Tarkasastra.The treatment of the subject is both historical and critical. The author has traced some Greek influence on indian logic. For instance he has shown how the (...) five membered syllogism of Aristotle found its way through Alexandria Syria and other countries into Taxila and got amalgamated with the Nyaya doctrine of inference.The book is one of the pioneer works on the subjects. It has drawn on original sources exhaustively. Besides the preface introduction, foreword and table of contents the work contains several appendices and indexes. (shrink)

The exhaustive explications on jāti-s (sophisticated ripostes) and their seemingly chaotic arrangement in early Indian philosophical texts arouses an expectation for a systematic taxonomy or typology. Such taxonomy would enormously increase the heuristic value of the list of jāti-s. The present article aims to reveal some interpretational problems relevant to the understanding of the jāti-s’ historical development, as well as the theoretical implications of their typology. Focusing historically on the early texts of debate manuals of Nyāya and Buddhist circles, this (...) article will excavate and explicate the vague and the obvious attempts to establish a typology of jāti-s. Given that Diṅnāga was the philosopher who shifted the history of Indian philosophy into the era of macro theory by integrating ontology and epistemology into a general system, the minimal changes of the order of the jāti-s in the list given in the Pramāṇasamuccaya, in contrast to the one found in the Nyāyamukha, will be interpreted as a paradigm shift. The rearrangement of the jāti list in the Pramāṇasamuccaya represents the paradigm shift from the debate (vāda) manual to the epistemological (pramāṇa) treatise, confirming Frauwallner’s ideas regarding the development of Diṅnāga’s thought. (shrink)