Category Theory

Our in purpose in writing this book is to present the theory of categories at earliest moment at which the reader can appreciate it, that is, as soon he becomes reasonably acquanted with set theory, modern algebra, and general topology. It is hoped that such a presentation will help him to prepare for advanced topics om these subjects and in algebraic topology. Thus the book is designed for normal use the during early stages of graduate study — possibly or in honors courses for undergraduates. However, this does not preclude its use as "armchair reading" for mature not yet had formal to the exposure subject.