display all the ideas for this combination of texts
3 ideas
22286 | Existence is not a first-level concept (of God), but a second-level property of concepts [Frege, by Potter] |
8644 | Because existence is a property of concepts the ontological argument for God fails [Frege] |
3634 | We can't prove a first cause from our inability to grasp infinity [Descartes] |