Combining Texts

All the ideas for 'Set Theory and related topics (2nd ed)', 'Unity of Science as a Working Hypothesis' and 'Remarks on the Foundations of Mathematics'

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4 ideas

3. Truth / H. Deflationary Truth / 1. Redundant Truth

11074

'It is true that this follows' means simply: this follows [Wittgenstein]

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]

6. Mathematics / C. Sources of Mathematics / 6. Logicism / a. Early logicism

11073

Two and one making three has the necessity of logical inference [Wittgenstein]

14. Science / D. Explanation / 2. Types of Explanation / j. Explanations by reduction

20653

Six reduction levels: groups, lives, cells, molecules, atoms, particles [Putnam/Oppenheim, by Watson]