Susan Fowler has a guide for learning math, section 2 is "Introduction to Proofs." She suggests "How to Prove It: A Structured Approach" by Daniel J. Velleman.

Susan Fowler has a guide for learning math, section 2 is "Introduction to Proofs." She suggests "How to Prove It: A Structured Approach" by Daniel J. Velleman. https://www.susanrigetti.com/math https://www.susanrigetti.com/math