what are the different schools of indian philosophy?
['Indian philosophy refers to philosophical traditions of the Indian subcontinent. ... ', 'There are six major schools of orthodox (astika) Indian Hindu philosophy—Nyaya, Vaisheshika, Samkhya, Yoga, Mīmāṃsā and Vedanta, and five major heterodox (nastika) schools—Jain, Buddhist, Ajivika, Ajñana, and Charvaka.']