Combining Texts

Ideas for 'Abstract Objects: a Case Study', 'Introducing the Philosophy of Mathematics' and 'Our Knowledge of the External World'

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4 ideas

7. Existence / C. Structure of Existence / 6. Fundamentals / d. Logical atoms

21684

Atomic facts may be inferrable from others, but never from non-atomic facts [Russell]

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]

7. Existence / D. Theories of Reality / 8. Facts / d. Negative facts

22316

A positive and negative fact have the same constituents; their difference is primitive [Russell]