6.2, due on October 8

What was the most difficult part of the material for you?
Sometimes it's difficult to understand how to show that if P(k) is true then P(k+1) is true. There's a certain methodology to knowing how to start these problems that will take practice.

What was the most interesting part of the material for you?
I think it's cool that we can prove things in math both with deduction and induction. I've always thought of experimental science as the only inductive science, and theoretical science and math as only deductive. This is obviously not true.