Combining Texts

All the ideas for 'Set Theory and related topics (2nd ed)', 'Of Liberty and Necessity' and 'Wiener Logik'

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

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5 ideas

2. Reason / D. Definition / 2. Aims of Definition

18261

A simplification which is complete constitutes a definition [Kant]

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]

5. Theory of Logic / A. Overview of Logic / 3. Value of Logic

22275

Logic gives us the necessary rules which show us how we ought to think [Kant]

10. Modality / B. Possibility / 5. Contingency

6215	'Contingent' means that the cause is unperceived, not that there is no cause [Hobbes]

13. Knowledge Criteria / A. Justification Problems / 3. Internal or External / b. Pro-externalism

18260

If we knew what we know, we would be astonished [Kant]