5 ideas
17832 | Zermelo showed that the ZF axioms in 1930 were non-categorical [Zermelo, by Hallett,M] |
13028 | Replacement was added when some advanced theorems seemed to need it [Zermelo, by Maddy] |
17626 | The antinomy of endless advance and of completion is resolved in well-ordered transfinite numbers [Zermelo] |
16209 | How can point-duration slices of people have beliefs or desires? [Thomson] |
19436 | Bare or primary matter is passive; it is clothed or secondary matter which contains action [Leibniz] |