Combining Texts

All the ideas for 'The Logic of Boundaryless Concepts', 'Essays on Intellectual Powers 1: Preliminary' and 'Reference and Generality (3rd ed)'

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11 ideas

5. Theory of Logic / A. Overview of Logic / 3. Value of Logic

9390	Logic guides thinking, but it isn't a substitute for it [Rumfitt]

6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / d. Counting via concepts

12154

Are 'word token' and 'word type' different sorts of countable objects, or two ways of counting? [Geach, by Perry]

9. Objects / A. Existence of Objects / 6. Nihilism about Objects

8969	We should abandon absolute identity, confining it to within some category [Geach, by Hawthorne]

9. Objects / B. Unity of Objects / 3. Unity Problems / e. Vague objects

9389	Vague membership of sets is possible if the set is defined by its concept, not its members [Rumfitt]

9. Objects / F. Identity among Objects / 3. Relative Identity

16075

Denial of absolute identity has drastic implications for logic, semantics and set theory [Wasserman on Geach]

12152

Identity is relative. One must not say things are 'the same', but 'the same A as' [Geach]

9. Objects / F. Identity among Objects / 8. Leibniz's Law

16073

Leibniz's Law is incomplete, since it includes a non-relativized identity predicate [Geach, by Wasserman]

12. Knowledge Sources / E. Direct Knowledge / 1. Common Sense

23633

Many truths seem obvious, and point to universal agreement - which is what we find [Reid]

18. Thought / C. Content / 2. Ideas

23630

Only philosophers treat ideas as objects [Reid]

19. Language / A. Nature of Meaning / 9. Ambiguity

23629

The ambiguity of words impedes the advancement of knowledge [Reid]

26. Natural Theory / C. Causation / 1. Causation

23632

Similar effects come from similar causes, and causes are only what are sufficient for the effects [Reid]