Abstract
In his final paragraph Nelson says that one could as well assert the possibility of God's nonexistence as of his existence. I can understand this only in the following sense: a positivist may well say that, for all we know at least, there may be nothing divine, since the idea of divinity cannot be shown to have consistent cognitive meaning. But an atheist, as I have defined the word, can only mean by the "possibility of God's nonexistence" that God might in contingent fact not exist, and this is excluded by step 6 of the argument. Hence the non-positivistic opponent of theism must quarrel with one or more of the first six steps of the proof. He is free to do so. But some of us find these steps persuasive.