To Arfa Brane This, his post 417, lead me to think he might have some intelligence and cleverly be bating me into giving proof that it is impossible to prove the non-existence of something. - I.e. proving that such proofs do not exist, would of course be an example of proving the non-existence of something - i.e. negating my own claim. When he replied, post 419, ignoring my request for even one example of a proof that something does not exist, and only wanders around verbally calling names and spouting nonsense, I knew he was not doing that and in fact was not deserving of any reply. Unfortunately one more of his type seems to be joining Sciforums. I bet that he will not acknowledge his error about math not being logic, etc. but treat you to some name calling too.