Well I went to my teacher to get help, but his method just did not work (no idea why). I'm trying to solve this:
For all n in N (where N is the set of natural numbers)
I understand the steps to PMI, but when I get to the Inductive Step and try to solve the equality I get completely stuck.
I don't know what I am doing wrong, whether it be the PMI steps or otherwise. Thanks guys.