5 ideas
9470 | Modal logic is not an extensional language [Parsons,C] |
14238 | A class is an aggregate of objects; if you destroy them, you destroy the class; there is no empty class [Frege] |
9469 | Substitutional existential quantifier may explain the existence of linguistic entities [Parsons,C] |
9468 | On the substitutional interpretation, '(∃x) Fx' is true iff a closed term 't' makes Ft true [Parsons,C] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |