Combining Texts

All the ideas for 'Universals and Particulars', 'Questions on Aristotle's Posterior Analytics' and 'Frege versus Cantor and Dedekind'

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10 ideas

1. Philosophy / F. Analytic Philosophy / 7. Limitations of Analysis

9978	Analytic philosophy focuses too much on forms of expression, instead of what is actually said [Tait]

4. Formal Logic / F. Set Theory ST / 3. Types of Set / b. Empty (Null) Set

9986	The null set was doubted, because numbering seemed to require 'units' [Tait]

4. Formal Logic / F. Set Theory ST / 7. Natural Sets

9984	We can have a series with identical members [Tait]

8. Modes of Existence / D. Universals / 6. Platonic Forms / c. Self-predication

4442	Most thinkers now reject self-predication (whiteness is NOT white) so there is no Third Man problem [Armstrong]

12. Knowledge Sources / B. Perception / 2. Qualities in Perception / b. Primary/secondary

16726

Why can't we deduce secondary qualities from primary ones, if they cause them? [Buridan]

18. Thought / E. Abstraction / 2. Abstracta by Selection

9981	Abstraction is 'logical' if the sense and truth of the abstraction depend on the concrete [Tait]

9982	Cantor and Dedekind use abstraction to fix grammar and objects, not to carry out proofs [Tait]

18. Thought / E. Abstraction / 7. Abstracta by Equivalence

9985	Abstraction may concern the individuation of the set itself, not its elements [Tait]

18. Thought / E. Abstraction / 8. Abstractionism Critique

9972	Why should abstraction from two equipollent sets lead to the same set of 'pure units'? [Tait]

9980	If abstraction produces power sets, their identity should imply identity of the originals [Tait]