The Proof of the Mischievous God1) Suppose that God exists, and that this God is all powerful and all knowing.
2) God can, then, influence the human mind and make one believe whatever He wants us to believe. This would certainly fall under the heading of what an all powerful person could do. (As for making us believe anything, see my earlier post about unreasonable doubt.)
3) God could, for example, cause one to believe a false proof for God's non-existence, and to believe it for as long as He so chooses.
4) Therefore, there can exist a situation where a proof for God's non-existence exists despite God's persistent existence.
5) Under these circumstance, the proof would be false There would be no way to determine if these circumstances exist, because God, being all-powerful and all-knowing, could keep us from finding out.
6) Any proof for God's non-existence could therefore be false beyond our ability to prove otherwise.
7) Since a good proof, by its definition, can never have a false conclusion, it follows that God's non-existence cannot be proved.