The Pramanavarttikalamkara of Prajnakaragupta is a commentary on Dharmakirti´s Pramanavarttika. A manuscript of the text in Sanskrit was discovered by Rahula Sankrtyayana, and the same scholar published its first edition in 1953. Since this editio princeps was made without using all available materials and since the methodological procedures are unsatisfying in many other respects, too, any further reflection on the thoughts and ideas of Prajnakaragupta presupposes a new critical edition. Ono´s...