Pra^san!gika， a later branch of Indian Ma^dhyamika 中观派， the name of which literally means "making use of the consequences." This school was developed based on the work of Buddhapa^lita （佛护， c.470-540） and Candraki^rti （月称， c. 650）， who， in working out the argumentation of the concept of /su^nyata^， denied the validity of the use of logical propositions which ended up affirming any sort of positive position. The other competing school which took instead an approach of positive dialectic was called Sva^trantika （dulilunzhengpai） 独立论证派）.