https://www.amazon.com/Introduction-Mathematical-Reasoning-Numbers-Functions/dp/0521597188 https://www.amazon.com/Introduction-Mathematical-Reasoning-N... I’d

https://www.amazon.com/Introduction-Mathematical-Reasoning-Numbers-Functions/dp/0521597188 https://www.amazon.com/Introduction-Mathematical-Reasoning-N... I’d highly recommend this book. It’s what I had for my intro to proofs class in college and it was the best book I found for understanding. I found many other books on this topic to be kinda garbage but this one was amazing.