14 ideas
| 18755 | Validity is explained as truth in all models, because that relies on the logical terms [McGee] |
| 18751 | Natural language includes connectives like 'because' which are not truth-functional [McGee] |
| 18761 | Second-order variables need to range over more than collections of first-order objects [McGee] |
| 18753 | An ontologically secure semantics for predicate calculus relies on sets [McGee] |
| 18754 | Logically valid sentences are analytic truths which are just true because of their logical words [McGee] |
| 18757 | Soundness theorems are uninformative, because they rely on soundness in their proofs [McGee] |
| 13007 | Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz] |
| 18760 | The culmination of Euclidean geometry was axioms that made all models isomorphic [McGee] |
| 10197 | An immanent universal is wholly present in more than one place [Zimmerman,DW] |
| 10198 | If only two indiscernible electrons exist, future differences must still be possible [Zimmerman,DW] |
| 10199 | Discernible differences at different times may just be in counterparts [Zimmerman,DW] |
| 18762 | A maxim claims that if we are allowed to assert a sentence, that means it must be true [McGee] |
| 14610 | Neither 'moving spotlight' nor 'growing block' views explain why we care what is present or past [Zimmerman,DW] |
| 14608 | A-theorists, unlike B-theorists, believe some sort of objective distinction between past, present and future [Zimmerman,DW] |