Proof of God's Existence No. 28 - MITCHELL'S ARGUMENT:
(1) The Christian God exists.
(2) Therefore, all worldviews which don't assume the Christian God's existence are false and incomprehensible.
(3) Therefore, God exists.
From http://tinyurl.com/iom3 - Hundreds of Proofs of God’s Existence (Formerly: Over Three Hundred Proofs of God’s Existence). Originally adapted from a forum on the Internet Infidels