15 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] |
17435 | Objects do not naturally form countable units [Koslicki] |
17433 | We can still count squares, even if they overlap [Koslicki] |
17439 | There is no deep reason why we count carrots but not asparagus [Koslicki] |
17434 | We struggle to count branches and waves because our concepts lack clear boundaries [Koslicki] |
18760 | The culmination of Euclidean geometry was axioms that made all models isomorphic [McGee] |
17436 | We talk of snow as what stays the same, when it is a heap or drift or expanse [Koslicki] |
18762 | A maxim claims that if we are allowed to assert a sentence, that means it must be true [McGee] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |