This confirms my experience so far. I tried to read Naive Set Theory, but after like 3 chapters I realized that the author already expects me to know how proofs work. I used the book How to prove it by Daniel J. Velleman to learn how to write proofs. I cannot say whether this is the best book out there, but it is definitely useful for self-study. It has a lot of exercise problems after every section and solutions for 30-50% of them. I went through roughly half of the book.
I am currently taking linear algebra and real analysis in university and I feel more comfortable about the class than a lot of my classmates.
This confirms my experience so far. I tried to read Naive Set Theory, but after like 3 chapters I realized that the author already expects me to know how proofs work. I used the book How to prove it by Daniel J. Velleman to learn how to write proofs. I cannot say whether this is the best book out there, but it is definitely useful for self-study. It has a lot of exercise problems after every section and solutions for 30-50% of them. I went through roughly half of the book. I am currently taking linear algebra and real analysis in university and I feel more comfortable about the class than a lot of my classmates.