5 ideas
13342 | Carnap defined consequence by contradiction, but this is unintuitive and changes with substitution [Tarski on Carnap] |
13251 | Each person is free to build their own logic, just by specifying a syntax [Carnap] |
8978 | Events are made of other things, and are not fundamental to ontology [Bennett] |
6005 | Animals are dangerous and nourishing, and can't form contracts of justice [Hermarchus, by Sedley] |
10364 | Facts are about the world, not in it, so they can't cause anything [Bennett] |