 In the Middle Ages, St. Thomas came as close as Kant to the truth, remarkably enough by reflecting upon the same proposition, “God exists”. According to him, the “is” is not a real predicate but merely a sign of affirmation (Summa Theologica, P. I, Q. 3, A. 4 ad 2). (PES 211 fn, [II 53 fn; SVS 1, 234 fn 244])