It doesn't matter how right you are, if you try to convince your wife to admit that you are right you will end up being wrong.
Yes there are going to be times when your wife will know that you are right about something but will not want to to admit it. Your response should not be to try to get her to admit it or else you will end up in more hot water than you would have been if you were wrong. I cannot remember the exact situation that occured before I wrote this rule, but this is some thing that I have needed to work on. But you still will not get in as much trouble as trying to get your wife to admit she was wrong.