The concept of God in Judaism evolved both during and immediately after the Babylonian Exile from that of a national god to that of a universal god.
 This theory contrasts with the rationalist view that concepts are perceptions (or recollections, in Plato's term) of an independently existing world of ideas, in that it denies the existence of any such realm
 In the 20th century, philosophers such as Wittgenstein and Rosch argued against the classical theory

