4 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] |
11946 | Propensities are part of a situation, not part of the objects [Popper] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |