6 ideas
17813 | Löwenheim-Skolem says any theory with a true interpretation has a model in the natural numbers [White,NP] |
17812 | Finite cardinalities don't need numbers as objects; numerical quantifiers will do [White,NP] |
16698 | Days exist, and yet they seem to be made up of parts which don't exist [Burley] |
16690 | Unlike permanent things, successive things cannot exist all at once [Burley] |
16719 | The primary qualities are mixed to cause secondary qualities [Burley] |
20653 | Six reduction levels: groups, lives, cells, molecules, atoms, particles [Putnam/Oppenheim, by Watson] |