I want to be a physicist when I'm out of college, but I see a humongous obstacle in proofs. See, I had taken Calc III and Diff Eq earlier this year, and aced them, but when I got to linear algebra, my first proof-based course, my grade dropped to a C+. (I have my final tomorrow, btw, and I'm dead there. You can see my thread there in the linear algebra section. Help would be appreciated ), but the purpose of this post is how do I learn to do proofs well? Any books you would recommend? Will physic's students math courses involve proofs? If so, I can't be a physicist. Thanks.