16 ideas
22396 | We take courage, temperance, wisdom and justice as moral, but Aristotle takes wisdom as intellectual [Foot] |
22397 | Wisdom is open to all, and not just to the clever or well trained [Foot] |
9193 | ZF set theory has variables which range over sets, 'equals' and 'member', and extensionality [Dummett] |
9194 | The main alternative to ZF is one which includes looser classes as well as sets [Dummett] |
9195 | Intuitionists reject excluded middle, not for a third value, but for possibility of proof [Dummett] |
9186 | First-order logic concerns objects; second-order adds properties, kinds, relations and functions [Dummett] |
9187 | Logical truths and inference are characterized either syntactically or semantically [Dummett] |
9191 | Ordinals seem more basic than cardinals, since we count objects in sequence [Dummett] |
9192 | The number 4 has different positions in the naturals and the wholes, with the same structure [Dummett] |
4871 | A thing is free if it acts only by the necessity of its own nature [Spinoza] |
22402 | Most people think virtues can be displayed in bad actions [Foot] |
23145 | Virtues are intended to correct design flaws in human beings [Foot, by Driver] |
22401 | Actions can be in accordance with virtue, but without actually being virtuous [Foot] |
22398 | Virtues are corrective, to resist temptation or strengthen motivation [Foot] |
22403 | Temperance is not a virtue if it results from timidity or excessive puritanism [Foot] |
22400 | Courage overcomes the fears which should be overcome, and doesn't overvalue personal safety [Foot] |