How to Prove It: A Structured Approach
"The prose is clear and cogent ... the exercises are plentiful and are pitched at the right level....  I recommend this book very highly!"MAA Reviews"The book provides a valuable introduction to the nuts and bolts of mathematical proofs in general."SIAM Review"This is a good book, and an exceptionally good mathematics book. Thorough and clear explanations, examples, and (especially) exercised with complete solutions all contribute to make this an excellent choice for teaching yourself, or a class, about writing proofs."Brent Smith, SIGACT News