display all the ideas for this combination of texts
4 ideas
4705 | Logical relativism appears if we allow more than one legitimate logical system [O'Grady] |
4700 | A third value for truth might be "indeterminate", or a point on a scale between 'true' and 'false' [O'Grady] |
4704 | Wittgenstein reduced Russell's five primitive logical symbols to a mere one [O'Grady] |
10800 | The values of variables can't determine existence, because they are just expressions [Ryle, by Quine] |