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## Appendix 250
The main mention in the 'Prajnapti' that it was written 461 years after the Nirvan of Shak Raja is probably correct and should be understood as the time of the end of the reign of Shak Raja. However, for a thorough investigation and a true decision, special research is needed, which should be the endeavor of scholars.
(4) In a recent article*, Dr. Hermann Jacobi has written that 'Siddhasen Divakara' was a scholar of the 7th century AD or should be considered to be from that time - because he was familiar with the logic of the Buddhist philosopher 'Dharmakirti':
"...The first Svetambara author of Sanskrit works which have come down to us was Siddhasen Divakara who must be assigned to the 7th century A.D. since he was acquainted with the logics of the Buddhist philosopher Dharmakirti.”
Although Dr. Jacobi has not provided any clear explanation of his statement, his reasoning suggests that he has specifically examined the 'Nyayavtar' text of Siddhasen Divakara. And he has reached this conclusion based on an internal examination of the literature with the texts of Dharmakirti. If this conclusion of his is indeed true,
* This article was published in the fortnightly journal 'Veer' of the Jain Council (No. 11-12) in the 'Mahavira Jayanti Issue'.
1 It has already been stated (p. 123) that the Buddhist Acharya Dharmakirti was a scholar of the 7th century AD.