[Math] find (download) a book about basics of discrete mathematics

discrete mathematicslearningreference-request

I am a beginner in this craft. Do you know where can I download a good book about basics of discrete mathematics?

Best Answer

László Lovász & Kati Vesztergombi, Discrete Mathematics, Lecture Notes, Yale University, Spring 1999, is available as a .ps file here and as a PDF here. 18 April 2020: The PDF is no longer available. 16 August 2020 The link is updated. Now its working.

Edward A. Bender & S. Gill Williamson, Foundations of Combinatorics with Applications, is available in both formats here.

Both have a strong emphasis on combinatorics, and both do a significant amount of graph theory. The Bender & Williamson is a bit more computer-science oriented and covers in greater depth some of the topics that they have in common; the Lovász & Vesztergombi covers some elementary number theory.