I just started number theory, and I feel completely lost. I never did proofs in calc. I am used to watching the professor do examples, then with solutions manual at home see how the problems are done and use the manual if I get stuck. This book on NT has no homework problems or solutions. I just don't really know where to start on problems? The professor just basically does proofs every class, and they are very hard to follow. I get lost early in the proof, then don't know what to do. I have done very well through calc, not sure what to do. Suggestions?