Sanskrit Digna^ga， Pali Dinnaga. 480-540. Lived in Andhra in Southern India and was in the dharma lineage of Vasubandhu. He wrote the Nya^yadvarataka-/sa^stra （因明正理门论: "Treatise on Entering the True Principle of Causal Logic"）， establishing the New School of Hetu-vidya^. By establishing the three characteristics of cause on the nine possible combinations of like and unlike， by converting the old five-part syllogism into a three-part syllogism， he changed Buddhist logic from the analogical method to the deductive method， giving it a completely different logical basis. Also， in the field of Consciousness-only theory， he developed the theory of the three aspects 三分 of consciousness: subjective， objective and self-witnessing. Among his works are the one fascicle Guan suoyuan lun 观所缘论， the Zhangzhong lun 掌中论， the Wuxiangsi chen lun 无相思尘论， and the Quyinjiashuolun 取因假说论. Dharmapa^la was a later transmitter of his tradition.