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by alfiejohn_ 5446 days ago
If you don't understand proofs, don't read any more maths books until you've read "Prove It":

  http://www.amazon.com/How-Prove-Structured-Daniel-Velleman/dp/0521675995
Even though you'll learn to read and write rigorous proofs with this book, it's requirements are high school maths and doesn't assume anything.