books.google.com - MATHEMATICS: A DISCRETE INTRODUCTION teaches students the fundamental concepts in discrete mathematics and proof-writing skills. With its clear presentation, the text shows students how to present cases logically beyond this course. All of the material is directly applicable to computer science and engineering,...http://books.google.com/books/about/Mathematics_A_Discrete_Introduction.html?id=DZBHGD2sEYwC&utm_source=gb-gplus-shareMathematics: A Discrete Introduction