Which of the following is incorrect claim in the context of Vyapti?
1
For Cārvakās, it is possible to ascertain that smoke is invariably and universally attended with fire all the time
2
For Buddhists, the universal relation between smoke and fire can be ascertained even without examining all the possible cases
3
For Vedāntins, Vyāpti between smoke and fire is known to co-exist and at the same time it is never known not to accompany smoke
4
For Naiyayikas, it is neither easy nor necessary for the formation of a universal proposition to ascertain any relation of causality or identity between the two phenomenon