Subjects / Mathematical proofs
Best books to learn Mathematical proofs, in order
This is the bridge subject, the deliberate transition from computation to rigor, so it should come before, not during, your first proof-heavy courses. A good path starts with logic, sets, and quantifiers, then drills the standard techniques, direct proof, contradiction, induction, on concrete claims, so that when abstraction arrives elsewhere you already know how to argue carefully.
Reading paths for mathematical proofs
Learn to write mathematical proofs: books in order
Beginner9books75 hrs5 stages