Combining Texts

All the ideas for 'Set Theory and related topics (2nd ed)', 'Foundations of Two-Dimensional Semantics' and 'Abstract Objects:intro to Axiomatic Metaphysics'

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


4 ideas

4. Formal Logic / F. Set Theory ST / 3. Types of Set / e. Equivalence classes
Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz]
9. Objects / A. Existence of Objects / 2. Abstract Objects / a. Nature of abstracta
Abstract objects are constituted by encoded collections of properties [Zalta, by Swoyer]
9. Objects / A. Existence of Objects / 2. Abstract Objects / c. Modern abstracta
Properties make round squares and round triangles distinct, unlike exemplification [Zalta, by Swoyer]
19. Language / C. Assigning Meanings / 10. Two-Dimensional Semantics
'Water' is two-dimensionally inconstant, with different intensions in different worlds [Chalmers, by Sider]