3 ideas
13416 | Mathematics must be based on axioms, which are true because they are axioms, not vice versa [Tait, by Parsons,C] |
18284 | Particulars can be verified or falsified, but general statements can only be falsified (conclusively) [Popper] |
19436 | Bare or primary matter is passive; it is clothed or secondary matter which contains action [Leibniz] |