Combining Texts

All the ideas for 'Abstract Objects: a Case Study', 'Model Theory for Modal Logic I' and 'Identity through Possible Worlds'

expand these ideas     |    start again     |     specify just one area for these texts

7 ideas

4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / h. System S5
9560 S5 provides the correct logic for necessity in the broadly logical sense [Fine,K]
6. Mathematics / C. Sources of Mathematics / 6. Logicism / c. Neo-logicism
10580 Mathematics is both necessary and a priori because it really consists of logical truths [Yablo]
6. Mathematics / C. Sources of Mathematics / 9. Fictional Mathematics
10579 Putting numbers in quantifiable position (rather than many quantifiers) makes expression easier [Yablo]
7. Existence / C. Structure of Existence / 7. Abstract/Concrete / a. Abstract/concrete
10577 Concrete objects have few essential properties, but properties of abstractions are mostly essential [Yablo]
10578 We are thought to know concreta a posteriori, and many abstracta a priori [Yablo]
9. Objects / D. Essence of Objects / 14. Knowledge of Essences
11966 If there are essential properties, how do you find out what they are? [Chisholm]
10. Modality / E. Possible worlds / 3. Transworld Objects / a. Transworld identity
11965 Could possible Adam gradually transform into Noah, and vice versa? [Chisholm]