Combining Texts

All the ideas for 'Wiener Logik', 'Introduction to Philosophical Papers I' and 'Principles of Theoretical Logic'

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

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5 ideas

1. Philosophy / E. Nature of Metaphysics / 3. Metaphysical Systems

21461

I tried to be unsystematic and piecemeal, but failed; my papers presuppose my other views [Lewis]

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

18261

A simplification which is complete constitutes a definition [Kant]

4. Formal Logic / C. Predicate Calculus PC / 1. Predicate Calculus PC

17750

The first clear proof of the consistency of the first order predicate logic was in 1928 [Hilbert/Ackermann, by Walicki]

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]

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]