5 ideas
9616 | A set is a collection into a whole of distinct objects of our intuition or thought [Cantor] |
9565 | Zermelo made 'set' and 'member' undefined axioms [Zermelo, by Chihara] |
3339 | For Zermelo's set theory the empty set is zero and the successor of each number is its unit set [Zermelo, by Blackburn] |
15896 | Cantor needed Power Set for the reals, but then couldn't count the new collections [Cantor, by Lavine] |
19440 | How do you know you have conceived a thing deeply enough to assess its possibility? [Vaidya] |