6.1, due on February 6

1. Mathematical induction made a lot of sense to me, but only after I thought about it for a while. It seems like it will be pretty easy to set up the proof, but then actually working through it and grouping and rewriting terms to make it work for k+1 will be the difficult part.

2. I think that probably the most important topics we have learned about have to do with direct proofs and proofs by contrapositive, because so many of the other concepts have stemmed from this knowledge. I am expecting to see a lot of questions on the exam that have to do with this. I also expect to see some tricky definition-type questions in multiple choice. I think the sections I had the most trouble with were the ones that involved set proofs, so if I had to choose something to see more examples of, it would be that.