Combining Texts

All the ideas for 'The Development of Logic', 'Grundlagen (Foundations of Theory of Manifolds)' and 'Morality and Human Sexuality'

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

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5 ideas

4. Formal Logic / F. Set Theory ST / 1. Set Theory

15946

Cantor developed sets from a progression into infinity by addition, multiplication and exponentiation [Cantor, by Lavine]

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]

6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / e. Ordinal numbers

15911

Ordinals are generated by endless succession, followed by a limit ordinal [Cantor, by Lavine]

25. Social Practice / F. Life Issues / 5. Sexual Morality

20890

Why do sexual relationships need permanence, if other relationships don't? [Punzo]

20891

Does engaging in sexual intercourse really need no more thought than playing tennis? [Punzo]