1.Introduction. 2.Introduction to Logic. 3.More About Logic. 4.Sets. 5.Set Theory and Logic. 6.Counting. 7.The Cartesian Product. Functions. 8.Relations. 9.More About Total Ordering. 10.Probability. 11.An Elementary Geometry. 12.Conclusion. Appendix. Answers to Odd-Numbered Exercises. Indexes.