11 ideas
| 14779 | I reason in order to avoid disappointment and surprise [Peirce] |
| 14777 | That a judgement is true and that we judge it true are quite different things [Peirce] |
| 14780 | Only study logic if you think your own reasoning is deficient [Peirce] |
| 17818 | How many? must first partition an aggregate into sets, and then logic fixes its number [Yourgrau] |
| 17822 | Nothing is 'intrinsically' numbered [Yourgrau] |
| 17817 | Defining 'three' as the principle of collection or property of threes explains set theory definitions [Yourgrau] |
| 17815 | We can't use sets as foundations for mathematics if we must await results from the upper reaches [Yourgrau] |
| 17821 | You can ask all sorts of numerical questions about any one given set [Yourgrau] |
| 14778 | Facts are hard unmoved things, unaffected by what people may think of them [Peirce] |
| 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] |