Conceptual Mathematics - A First Introduction to Categories (Hardcover)

This is an introduction to thinking about elementary mathematics from a categorical point of view. The goal is to explore the consequences of a new and fundamental insight about the nature of mathematics which has led to better methods of understanding and using mathematical concepts, namely the idea of a category. The book applies categories to the most elementary mathematics. It thus serves two purposes: to provide a skeleton key to mathematics for the general reader or beginning student; and to furnish an easy introduction to categories.