Yasutaka Muroya (Leipzig)

Manuscript transmission of the fifth chapter of Vātsyāyana’s Nyāyabhāṣya

  • Time: Mi., 18. Juni 2014, 17:00 (c.t.)
  • Venue: Institut für Kultur- und Geistesgeschichte Asiens,
    Seminarraum 1
  • Organisation: Ernst Prets


The text of Vātsyāyana’s commentary (ca. 5th century CE) on the Nyāyasūtra, the foundational work of the Nyāya tradition, has not been critically edited on historical and philological principle. Since the completed DFG project conducted at the Institute for Indology and Central Asian Studies, University of Leipzig (2010-2013), I have been engaged with establishing a critical edition of its fifth chapter that deals with the dialectical issues such as sophistic rejoinders (jāti) and points of defeat (nigrahasthāna). The text is collated on the basis of thirty-four manuscripts, from which twenty manuscripts are selected to reconstruct the critical text. The present lecture offers observations on the textual criticism of the Nyāyabhāṣya and presents hypotheses about its textual transmission. The fifth chapter contains a unique portion in terms of textual comparison with Dharmakīrti’s Vādanyāya, which was critically edited by Michael Torsten Much in 1991. A comparative study of the manuscript tradition of the Nyāyabhāṣya and the Vādanyāya serves as one of the important keys to making an assessment of the reliability and archetype of the constituted text.


Yasutaka Muroya is a visiting scholar of the Institute for Indology and Central Asian Studies, University of Leipzig. His special interest lies in the development and diversification of the Nyāya tradition as known through the various philosophical interactions among the Naiyāyika authors. Besides papers on this topic, he has published a study on the marginal notes in the Nyāyamañjarī manuscripts in the Wiener Zeitschrift für die Kunde Südasiens (2009-2010). He is one of the editors in the ongoing project for a critical edition of the sixth and last chapter of Jinendrabuddhi’s Pramāṇasamuccayaṭīkā.