7 ideas
15642 | If kinds depend only on what can be observed, many underlying essences might produce the same kind [Eagle] |
15645 | Nominal essence are the observable properties of things [Eagle] |
15643 | Nominal essence mistakenly gives equal weight to all underlying properties that produce appearances [Eagle] |
9567 | Maths deals with quantities of physical significance, ignoring irrelevant features [Geroch] |
22439 | There are only duties if there are rights, so truth is only for those with a right to it [Constant] |
22440 | Unconditional truth-telling makes a society impossible [Constant] |
15641 | Kinds are fixed by the essential properties of things - the properties that make it that kind of thing [Eagle] |