3 ideas
23123 | Basic to human culture are binary oppositions, such as eating raw or cooked [Levi-Strauss, by Green,TH] |
15380 | Barcan:nothing comes into existence; Converse:nothing goes out; Both:domain is unchanging [Vervloesem] |
13007 | Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz] |