4 ideas
17697 | The existence of an arbitrarily large number refutes the idea that numbers come from experience [Hilbert] |
17698 | Logic already contains some arithmetic, so the two must be developed together [Hilbert] |
12750 | The question is whether force is self-sufficient in bodies, and essential, or dependent on something [Lenfant] |
18284 | Particulars can be verified or falsified, but general statements can only be falsified (conclusively) [Popper] |