Combining Texts

Ideas for 'The Courtier and the Heretic', 'What Does It All Mean?' and 'On Second-Order Logic'

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

display all the ideas for this combination of texts

---

1 idea

6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / e. Peano arithmetic 2nd-order

10833

Many concepts can only be expressed by second-order logic [Boolos]