4 ideas
16974 | The nature of each logical concept is given by a collection of inference rules [Correia] |
18948 | There is an object for every set of properties (some of which exist, and others don't) [Parsons,T, by Sawyer] |
16973 | Explain logical necessity by logical consequence, or the other way around? [Correia] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |