Combining Texts

All the ideas for 'The Philosophy of Logic', 'Improvement of Understanding' and 'Letter Seven'

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

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6 ideas

2. Reason / D. Definition / 2. Aims of Definition

16541

All the intrinsic properties of a thing should be deducible from its definition [Spinoza]

6. Mathematics / A. Nature of Mathematics / 5. The Infinite / i. Cardinal infinity

18200

Very large sets should be studied in an 'if-then' spirit [Putnam]

6. Mathematics / C. Sources of Mathematics / 4. Mathematical Empiricism / b. Indispensability of mathematics

18199

Indispensability strongly supports predicative sets, and somewhat supports impredicative sets [Putnam]

8857	We must quantify over numbers for science; but that commits us to their existence [Putnam]

14. Science / D. Explanation / 2. Types of Explanation / k. Explanations by essence

13073

To understand the properties we must know the essence, as with a circle [Spinoza]

22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / a. Preconditions for ethics

168	To understand morality requires a soul [Plato]