Combining Texts

Ideas for 'Metaphysics', 'Modal Logic' and 'Extrinsic Properties'

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

display all the ideas for this combination of texts

---

3 ideas

10. Modality / A. Necessity / 2. Nature of Necessity

12611

Necessity makes alternatives impossible [Aristotle]

10. Modality / A. Necessity / 4. De re / De dicto modality

14975

A de dicto necessity is true in all worlds, but not necessarily of the same thing in each world [Cresswell]

10. Modality / A. Necessity / 6. Logical Necessity

17852

A thing has a feature necessarily if its denial brings a contradiction [Aristotle]