No - logic is a good thing. It has its place and its uses. I do not want to discard it. (I use it myself) What I am saying is logic cannot be used to prove non existence of god. Logic can only be applied to definitions we give god. We cannot possibly define god by any concept we may begin to form of it, therefore all our definitions will obviously fall short of the mark. Therefore logic cannot be used as an argument to disprove god. It can only ever prove we have mis-defined god. In any case, logic is a man made concept that a certain part of our brain makes use of. There is no reason to suppose that any god would have to subscribe to the rules of man made logic.