The Art of Computer Programming/Mathematical Preliminaries
This page is part of The Art of Computer Programming
Section 1.1 Mathematical Preliminaries is expanded upon in book format by Concrete Mathematics: A Foundation for Computer Science by Ronald L. Graham, Donald E. Knuth and Oren Patashnik.
From the back of the book:
The subject matter is primarily an expansion of the Mathematcial Preliminaries section in Knuth's classic Art of Computer Programming, but the style of presentation is more leisurely, and individual topics are covered more deeply.