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Authors and Subjects Studied in Rājasthān too much to presume that Buddhist philosophy had many students in Rajasthan in the beginning of our period ? It is even possible that Jain logic might have been to a certain extent influenced by the Buddist. Nyāyāvatāra follows a pattern similar to that of Dignāga's Nyāynpravēša. Jain scholars, inside as well as outside Rājasthān, commented on Jain books of logio, as Jinavallabha Sūri studied Kama. lasilā's commentary on the Tattvasangraha.38
Umāsveti, Mallavādin, Samantabhadra, and Siddhasõna Divākara were the Jain philosophers studied most in Haribhadra's time.al Umāsváti, known also as Vāchakaśramana, is the famous author of the Tattvarthadhigama-sūtra which is accepted as an authoritative exposi tion of Jain philosophy by both the Digambaras and Svētāmbaras. Siddhasēna is the author of two important works, the Nyāyāvatara and the Sanmatitarka. Nyayavatara was one of the important philosophical works that Jinapati Sûri's disciples studied with Yasõbhadracbārya.28 It was commented on by Siddarşi Sūri (10 th. century ) To the Sanmatitarka we shall refer presently. Samantabhadra is the great Digambara scholar, the author of a commentary on the Tattvārthadhigamasutra, called the Gandhahastimahābhasya. Its introductory portion is known as the Aptamimāmsā. Mallavādin is the author of the Nayachakra, a book on Anēkānta philosophy. The Dharmottaratippaņaka, a commentary on the Buddhist logical treatise, Nyayabindutikā, is also sometimes ascribed to him.29
The Brahmana philosophers known to Haribhadra were Avadhūtá
23. Author of the Tattvasangraha, one of the learned and exhaustive treatises on Buddhist philosophy.
24. Mahamahopadhyâya S. C. Vidyābhtshan identifies him with Subhakaragupta, a contemporary of Ramapāla. This is impossible in view of Haribhadra's date.
25. Rabhaga Nandi wrote a commentary on Dharmakirti's Sambandhapariksa. Kalyanachandra similarly commented on Dharmakirti's Pramana-Vārtika. The Dharmottaratippaq aka ascribed to Mallavadin is referred to above.
28. Ganadharasārdhagatakabrihadvrtti quoted in the Introduction to the Apabhramsakāvyatrayi, p. 20.
27. These are referred to by Haribhadra in his works. 28. Kharataragachchhapattāvali of Jinapala (Unpublished ).
