Combining Texts

Ideas for 'Essays on Intellectual Powers: Conception', 'The Second Coming' and 'First-Order Modal Logic'

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

display all the ideas for this combination of texts

---

2 ideas

9. Objects / D. Essence of Objects / 4. Essence as Definition

23647

Objects have an essential constitution, producing its qualities, which we are too ignorant to define [Reid]

9. Objects / F. Identity among Objects / 7. Indiscernible Objects

13730

The Indiscernibility of Identicals has been a big problem for modal logic [Fitting/Mendelsohn]