Combining Texts

All the ideas for 'Identity through Possible Worlds', 'Elucidation of some points in E.Schrder' and 'Manuscript remains'

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

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6 ideas

1. Philosophy / D. Nature of Philosophy / 1. Philosophy

21916

Philosophers can't be religious, and don't need to be; philosophy is perilous but free [Schopenhauer]

4. Formal Logic / F. Set Theory ST / 3. Types of Set / b. Empty (Null) Set

14238

A class is an aggregate of objects; if you destroy them, you destroy the class; there is no empty class [Frege]

9. Objects / D. Essence of Objects / 14. Knowledge of Essences

11966

If there are essential properties, how do you find out what they are? [Chisholm]

10. Modality / E. Possible worlds / 3. Transworld Objects / a. Transworld identity

11965

Could possible Adam gradually transform into Noah, and vice versa? [Chisholm]

20. Action / B. Preliminaries of Action / 2. Willed Action / a. Will to Act

21924

As the subject of willing I am wretched, but absorption in knowledge is bliss [Schopenhauer]

22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / b. Rational ethics

21915

To deduce morality from reason is blasphemy, because it is holy, and far above reason [Schopenhauer]