5 ideas
10304 | Very few things in set theory remain valid in intuitionist mathematics [Bernays] |
10303 | Restricted Platonism is just an ideal projection of a domain of thought [Bernays] |
10306 | Mathematical abstraction just goes in a different direction from logic [Bernays] |
22352 | Out of more than a hundred planets, Earth is the only one with the idea of free will [Vonnegut] |
20698 | Irenaeus says evil is necessary for perfect human development [Irenaeus, by Davies,B] |