Combining Philosophers

Ideas for Irenaeus, Celsus and Ren Descartes

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

display all the ideas for this combination of philosophers

---

1 idea

10. Modality / C. Sources of Modality / 4. Necessity from Concepts

24030

3+4=7 is necessary because we cannot conceive of seven without including three and four [Descartes]