5 ideas
18776 | Contextual definitions eliminate descriptions from contexts [Linsky,B] |
8920 | Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz] |
18774 | Definite descriptions, unlike proper names, have a logical structure [Linsky,B] |
1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |