Combining Texts

All the ideas for 'A Résumé of Metaphysics', 'The Art of the Infinite' and 'The Development of Logic'

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10 ideas

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / f. Axiom of Infinity V

10051

The axiom of infinity is not a truth of logic, and its adoption is an abandonment of logicism [Kneale,W and M]

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / j. Axiom of Choice IX

15717

Using Choice, you can cut up a small ball and make an enormous one from the pieces [Kaplan/Kaplan]

6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / b. Types of number

15712

1 and 0, then add for naturals, subtract for negatives, divide for rationals, take roots for irrationals [Kaplan/Kaplan]

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

15711

The rationals are everywhere - the irrationals are everywhere else [Kaplan/Kaplan]

6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / f. Arithmetic

15714

'Commutative' laws say order makes no difference; 'associative' laws say groupings make no difference [Kaplan/Kaplan]

15715

'Distributive' laws say if you add then multiply, or multiply then add, you get the same result [Kaplan/Kaplan]

14. Science / C. Induction / 3. Limits of Induction

15713

The first million numbers confirm that no number is greater than a million [Kaplan/Kaplan]

22. Metaethics / C. The Good / 3. Pleasure / a. Nature of pleasure

5049	Intelligent pleasure is the perception of beauty, order and perfection [Leibniz]

28. God / A. Divine Nature / 3. Divine Perfections

5048	Perfection is simply quantity of reality [Leibniz]

29. Religion / D. Religious Issues / 3. Problem of Evil / b. Human Evil

5050	Evil serves a greater good, and pain is necessary for higher pleasure [Leibniz]