#### Oscar Levin

Digital versions | PDF and HTML (interactive) |

Latex source | Yes |

Mathbook XML source | Yes |

Exercises | Yes |

Solutions | Yes |

License | Creative Commons Attribution-ShareAlike 4.0 |

- Text for first or second year math majors
- Print edition for $12.50 from Amazon or CreateSpace
- 336 pages
- 363 exercises, 233 with answers or solutions
- 45 more involved problems
- For more information and to download

This open source textbook is being used at the University of Northern Colorado in a discrete mathematics course taken primarily by math majors, many of whom plan to become secondary teachers. This text can also be used in a bridge course or introduction to proofs. The major topics are introduced with *Investigate!* activities designed to get students more actively involved and which are suitable for inquiry based learning.

Table of Contents

- Introduction
- Counting
- Sequences
- Symbolic Logic and Proofs
- Graph Theory
- Additional Topics
- Generating Functions
- Introduction to Number Theory