Combining Texts

Ideas for 'Classical Cosmology (frags)', 'Introduction to the Theory of Logic' and 'Letters to Russell'

expand these ideas     |    start again     |     choose another area for these texts

display all the ideas for this combination of texts

---

3 ideas

6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / g. Real numbers

18253

I wish to go straight from cardinals to reals (as ratios), leaving out the rationals [Frege]

6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / f. Mathematical induction

10891

If a set is defined by induction, then proof by induction can be applied to it [Zalabardo]

6. Mathematics / C. Sources of Mathematics / 6. Logicism / a. Early logicism

18166

The loss of my Rule V seems to make foundations for arithmetic impossible [Frege]