Bha^vaviveka， also known as Bhavya， ca. 490-570. An influential Ma^dhyamika 中观派 scholar. He was originally from South India， but came to Magadha to study the Middle Way teachings of Na^ga^rjuna 龙树. He was known for his usage of positive dialectic to support the theory of emptiness. In this he was distinguished from philosophical opponents such as Buddhapa^lita 佛护 and Candraki^rti 月称， both of whom denied the validity of the use of logical propositions which ended up affirming any sort of positive position. Bha^vaviveka's position would be form the basic theme for a branch of Ma^dhyamika which later developed in the eighth century， called Sva^trantika （dulilunzhengpai 独立论证派）. Among his major works are the Zhongguan xinlun song 中观心论颂， Zhonglunzhu panruodenglun 中论注般若灯论 and the Dasheng zhangzhenlun 大乘掌珍论