13 ideas
9108 | From an impossibility anything follows [William of Ockham] |
9107 | A proposition is true if its subject and predicate stand for the same thing [William of Ockham] |
16300 | Ockham had an early axiomatic account of truth [William of Ockham, by Halbach] |
9106 | The word 'every' only signifies when added to a term such as 'man', referring to all men [William of Ockham] |
9113 | Just as unity is not a property of a single thing, so numbers are not properties of many things [William of Ockham] |
9110 | The words 'thing' and 'to be' assert the same idea, as a noun and as a verb [William of Ockham] |
14979 | Being alone doesn't guarantee intrinsic properties; 'being alone' is itself extrinsic [Lewis, by Sider] |
15454 | Extrinsic properties come in degrees, with 'brother' less extrinsic than 'sibling' [Lewis] |
15388 | Universals are single things, and only universal in what they signify [William of Ockham] |
15455 | Total intrinsic properties give us what a thing is [Lewis] |
9109 | If essence and existence were two things, one could exist without the other, which is impossible [William of Ockham] |
7803 | Modal logic began with translation difficulties for 'If...then' [Lewis,CI, by Girle] |
9105 | Some concepts for propositions exist only in the mind, and in no language [William of Ockham] |