Vada in Theory and Practice: Studies in Debates, Dialogues and Discussions in Indian Intellectual Discourses c7.s1.13

c7.s1.13

*Siddhānta* (theory) is a position resting on the authority of a certain treatise, a section of a treatise or implication.¹⁴ It is of four types — *sarvatantra siddhānta* (the theory followed by all systems), *pratitantra siddhānta* (theory in the system followed by the proponent not followed by the opponent), *adhikaraṇa siddhānta* (theory in the system followed in a treatise required for the validation of other sections) and *abhyupagama siddhānta* (the theory to be validated).