My object in this volume is to write the history of what is called Nyaya, one of the six schools into which orthodox philosophy in India is divided. The word ‘logic,’ although it is in common parlance held synonymous with Indian Nyaya, is not exactly identical with it logic covers some of the subjects of Nyaya as well as Vaisesika and is not co-extensive with either. Indian Logic has been differently defined in different ages but the definition generally ...