books.google.com - This concise text offers an introduction to discrete mathematics for undergraduate students in computer science and mathematics. Mathematics educators consider it vital that their students be exposed to a course in discrete methods that introduces them to combinatorial mathematics and to algebraic and...http://books.google.com/books/about/Introductory_Discrete_Mathematics.html?id=pOBXUoVZ9EEC&utm_source=gb-gplus-shareIntroductory Discrete Mathematics