Focusing on the formal development of mathematics, this book shows readers how to read, understand, write, and construct mathematical proofs. Uses elementary number theory and congruence arithmetic throughout. Focuses on writing in mathematics. Reviews prior mathematical work with ";Preview Activities"; at the start of each section. Includes ";Activities"; throughout that relate to the material contained in each section. Focuses on Congruence Notation and Elementary Number Theorythroughout. For professionals in the sciences or engineering who need to brush up on their advanced mathematics skills. Mathematical Reasoning: Writing and Proof, 2/E Theodore Sundstrom
It's nice that it's free, but fails in the same way that most textbooks fail, it won't give you the answers but instead leaves everything as "an exercise for the reader". Students need to see worked examples more than anything else. I don't understand why teachers and textbooks writers seem to feel that working through an example is somehow cheating the students out of the "learning experience" because now they know the answer.