8 ideas
17813 | Löwenheim-Skolem says any theory with a true interpretation has a model in the natural numbers [White,NP] |
18253 | I wish to go straight from cardinals to reals (as ratios), leaving out the rationals [Frege] |
17812 | Finite cardinalities don't need numbers as objects; numerical quantifiers will do [White,NP] |
18166 | The loss of my Rule V seems to make foundations for arithmetic impossible [Frege] |
18269 | Logical objects are extensions of concepts, or ranges of values of functions [Frege] |
3597 | Foundations need not precede other beliefs [Wittgenstein] |
3596 | Total doubt can't even get started [Wittgenstein, by Williams,M] |
4721 | If you are not certain of any fact, you cannot be certain of the meaning of your words either [Wittgenstein] |