Combining Texts

All the ideas for 'Set Theory and related topics (2nd ed)', 'Some Main Problems of Philosophy' and 'Letter to G.H. Schaller'

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

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3 ideas

1. Philosophy / D. Nature of Philosophy / 5. Aims of Philosophy / c. Philosophy as generalisation

17992

The main aim of philosophy is to describe the whole Universe. [Moore,GE]

4. Formal Logic / F. Set Theory ST / 3. Types of Set / e. Equivalence classes

8920	Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz]

16. Persons / F. Free Will / 5. Against Free Will

4871	A thing is free if it acts only by the necessity of its own nature [Spinoza]