Combining Texts

Ideas for 'Introduction to Russell's Theory of Types', 'Logic (Port-Royal Art of Thinking)' and 'Mathematics without Foundations'

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

display all the ideas for this combination of texts

---

2 ideas

7. Existence / C. Structure of Existence / 7. Abstract/Concrete / b. Levels of abstraction

10502

We can rise by degrees through abstraction, with higher levels representing more things [Arnauld,A/Nicole,P]

7. Existence / D. Theories of Reality / 4. Anti-realism

9943	You can't deny a hypothesis a truth-value simply because we may never know it! [Putnam]