Combining Texts

All the ideas for 'Modes of Extension: comment on Fine', 'Reals by Abstraction' and 'The Work of a Free Person'

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4 ideas

6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / g. Real numbers

10632

The real numbers may be introduced by abstraction as ratios of quantities [Hale, by Hale/Wright]

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

18883

Any equivalence relation among similar things allows the creation of an abstractum [Simons]

18884

Abstraction is usually seen as producing universals and numbers, but it can do more [Simons]

24. Political Theory / D. Ideologies / 11. Capitalism

23897

Once money is the main aim, society needs everyone to think wealth is possible [Weil]