Interested readers can find some information on the traditions of dialectic and eristic in India in the following studies (scroll doewn for my comments on each of them and a tentative summary):
For Mīmāṣakas, a non-defeated belief counts as knowledge as long as the opposite is proven. This means that according to Mīmāṃsakas, for the Veda, the absence of defeating conditions is in itself equivalent to its truth.
This, however, does not amount to its truth from the point of view of a theory which considers only justified true belief as knowledge. Incidentally, the Mīmāṃsā’s refusal to distinguish between justified belief and knowledge offers a way out of a difficulty found in every account of linguistic communication as an instrument of knowledge, i.e. the problem of how we can understand false utterances (see Chakrabarti 1986, Matilal 1990:61-8, Mohanty 1992:253-5, Ganeri 1999:18-25). Roughly, the problem lies in how we can understand that there is a snake in the next room after hearing the sentence “there is a snake in the next room” although there is no snake in the next room. Linguistic communication is an instrument of knowledge, but the belief that there is a snake in the next room cannot amount to knowledge. How can this content be possibly conveyed? In order to justify that we understand false sentences, Indian theories of linguistic communication as an instrument of knowledge would need a (preceding) status of non-committed awareness of the meaning, claim the authors listed above.
However, this is not needed in the case of Mīmāṃsā. Mīmāṃsakas would describe this situation by saying that our initial knowledge of the presence of a snake in the next room is later defeated as soon as we see that there is no snake there.
Suppose you want to undertake the study of Indian Philosophy and you want to read primary sources? Where should you start? I argued (in my contribution to Open Pages in South Asian Studies) that Bhaṭṭa Jayanta is a great starting point,
- Because he is a philosopher
- Because he deals with texts of other schools and thus aims at being understandable
- Because he is a talented writer
I just noticed that the one I published yesterday was my tenth post on Daya Krishna. Since I usually dedicate that many posts only to Classical Indian philosophers, this might demand some explanations. Why engaging with contemporary Indian philosophers? And why Daya Krishna in particular?
After many years, I am sort of fed up with having to answer the question above, and this is also why I had not read the essay by Barua (bearing the title Is there ‘Philosophy’ in India? An Exercise in Meta-Philosophy and available here) until he recommended it to me. In fact, the article tells more about what it means to ask the question, than about the answer (which is a straightforward “yes”).