This is a book on Indian philosophy. Its aim is to combine the discipline of philosophy
with that of philosophical research. It is not, however, concerned primarily with
historical research. The book deals with the problems of Indian philosophy--problems which
are necessarily philosophical, in the sense of being logical, epistemological, ontological
and soteriological. All the problems discussed here are interconnected in some way or
other, and it is reasonable to expect that a systematic account of classical Indian
philosophy will emerge from a discussion of such topics.
The book is meant for philosophers along with those interested in Sanskrit, Indian
Studies and what may be called a global approach to the study of philosophy.
Problems of inference lead to the discussion of philosophical logic. Historically, the
early Nyaya in India was succeeded by what we call Navya-nyaya in the 12th-13th century
A.D. Philosophers of this period were involved in the discussion of such problems as empty
terms, reference-failure, double negation, concomitance, definition, classification and
essences. All these issues constitute the second chapter here.