7 ideas
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] |
22331 | Moral statements are imperatives rather than the avowals of emotion - but universalisable [Hare, by Glock] |
22484 | Universalised prescriptivism could be seen as implying utilitarianism [Hare, by Foot] |
21051 | Check your rationality by thinking of your opinion pronounced by the supreme court [Rawls] |
6449 | The categorical imperative leads to utilitarianism [Hare, by Nagel] |
21119 | Power is only legitimate if it is reasonable for free equal citizens to endorse the constitution [Rawls] |