 Obviously, the success of the proofs depends on the legitimacy of the exclusive disjunction agreed to by both parties. Both parties, that is, assume that “there is a world,” and that it is, for example, “either finite or infinite.” Herein lies the problem, according to Kant. The world is, for Kant, neither finite nor infinite. The opposition between these two alternatives is merely dialectical. In the cosmological debates, each party to the dispute falls prey to the ambiguity in the idea of the world.