5 ideas
22102 | Arguing with opponents uncovers truths, and restrains falsehoods [Aquinas] |
9390 | Logic guides thinking, but it isn't a substitute for it [Rumfitt] |
17813 | Löwenheim-Skolem says any theory with a true interpretation has a model in the natural numbers [White,NP] |
17812 | Finite cardinalities don't need numbers as objects; numerical quantifiers will do [White,NP] |
9389 | Vague membership of sets is possible if the set is defined by its concept, not its members [Rumfitt] |