==Catuskoti== The history of fourfold negation, the Catuskoti (Sanskrit), is evident in the logico-epistemological tradition of India, given the categorical nomenclature `Indian logic` in Western discourse. Subsumed within the auspice of Indian logic, `Buddhist logic` has been particularly focused in its employment of the fourfold negation, as... Found on http://en.wikipedia.org/wiki/Tetralemma