5 ideas
3340 | Von Neumann defines each number as the set of all smaller numbers [Neumann, by Blackburn] |
3355 | Von Neumann wanted mathematical functions to replace sets [Neumann, by Benardete,JA] |
22716 | Von Neumann defined ordinals as the set of all smaller ordinals [Neumann, by Poundstone] |
15710 | Bohr explained the periodic table and chemical properties of elements, using the quantum atom [Kumar] |
14014 | Space alone, and time alone, will fade away, and only their union has an independent reality [Minkowski] |