________________
102
Siddhesenas commentary it appears that by his time numerous commentaries on Tattvärtha had been composed. Thus sometimes while explaining the bhāṣya on one single aphorism he refers to even five or six alternative views on the question under consideration, a situation that provides ground for the supposition that at the time when Siddhasena composed his commentary he had before him at least five other commentaries on Tattvärtha. The developed heritage of ideas as well as language pertaining to the topics of Tattvärtha that one finds exhibited in Siddhasena's commentary-from that one well gathers that by the time this commentary-was composed a good amount of literature pertaining to Tattvärtha had been composed and been propagated.
TATTVARTHA SUTRA
(d) An Incomplete Vṛtti
The third vrtti on the bhāṣya is by Upadhyāya Yaśovijaya; had this been available in its entirety then it would have served as a model of the development attained by the Indian philosophical science by the 17th-18th centuries-this one feels like saying as one merely goes through that small portion of this commentary which alone is available at present. This portion does not cover even chapter one in its entirety, and in it—as in the just described two commentaries-explanation is offered following the bhāṣya word by word; even then the deeply logical treatment of problems, thoroughgoing learning, the application of hidden ideas-these features of it convey a definite idea of the logical proficiency of Yasovijaya. Had this commentary been composed by him in its entirety then one hesitates to concede that it altogether perished within a space of just 250 years; so the endeavour to be made by way of searching for it should not go waste.
(e) The Tippana of Ratnasimha
In Anekānta, Vol. 3, Kirana 1 (1939 A. D.) Pt. Jugalkishoreji has introduced a manuscript of Tattvārthadhigamasutra
1. See Siddhasena's commentary on 5.3, p. 321.
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