 
 <prompt> Bhatta dey live before who? <response>: Later Indian materialist Jayaraashi Bhatta (6th century) for him work Tattvopaplavasimha ("The upsetting of all principles") refute the Nyaya Sutra epistemology. The materialistic Cārvāka philosophy appear say e don die some time after 1400. When Madhavacharya compile Sarva-darśana-samgraha (a digest of all philosophies) for the 14th century, e no get Cārvāka/Lokāyata text to quote from, or even refer to. 