display all the ideas for this combination of philosophers
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] |
8525 | Relations need terms, so they must be second-order entities based on first-order tropes [Campbell,K] |