Before revision: In contrast to the realist schools of Indian philosophy, the positive theory of nominalism, the apoha theory , put forward by Buddhist logicians, is based on the doctrine of impermanence and denies the existence of universals.
After revision: Based on the doctrine of impermanence, and in contrast to Buddhist logicians put forward a realist schools of Indian philosophy, the positive theory of nominalism, the apoha theory whichknown as denies the existence of universals.