Fundamental concepts of real analysis

This work has grown out of the lectures delivered by the author to the undergraduate and graduate students during the last fifteen years at the Bihar University, University of Wiscon- sin (1960-'61), Magadh University and to the participants (college and university teachers) of the Summer Institute of Mathematics (Patna University, 1965) in various capacities. The present volume serves as a preparation for the material to be presented in the subsequent volumes. It can be used as a text- book and can be helpful to any one who desires initiation into mathematical analysis. The presentation follows a middle course; it is neither heavy nor merely descriptive. The essential prerequisites are almost nil; the book is self-contained except at a couple of places.