5 ideas
17743 | De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki] |
8507 | Some think of reality as made of things; I prefer facts or states of affairs [Armstrong] |
8506 | Particulars and properties are distinguishable, but too close to speak of a relation [Armstrong] |
8505 | Refusal to explain why different tokens are of the same type is to be an ostrich [Armstrong] |
5470 | The idea of laws of nature arose in the Middle Ages [Hall,AR, by Ellis] |