3 ideas
9117 | The smallest heap has four objects: three on the bottom, one on the top [Hart,WD, by Sorensen] |
13007 | Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz] |
651 | Eurytus showed that numbers underlie things by making pictures of creatures out of pebbles [Eurytus, by Aristotle] |