4 ideas
15946 | Cantor developed sets from a progression into infinity by addition, multiplication and exponentiation [Cantor, by Lavine] |
15911 | Ordinals are generated by endless succession, followed by a limit ordinal [Cantor, by Lavine] |
13007 | Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz] |
20740 | Maybe humans are distinguished from other animals by feelings, rather than reason [Unamuno] |