6 ideas
15927 | Definition just needs negation, known variables, conjunction, disjunction, substitution and quantification [Weyl, by Lavine] |
15645 | Nominal essence are the observable properties of things [Eagle] |
15642 | If kinds depend only on what can be observed, many underlying essences might produce the same kind [Eagle] |
15643 | Nominal essence mistakenly gives equal weight to all underlying properties that produce appearances [Eagle] |
23060 | The good is not relative, but is rooted in facts about human needs [Santayana] |
15641 | Kinds are fixed by the essential properties of things - the properties that make it that kind of thing [Eagle] |