Combining Texts

All the ideas for 'The Theory of Knowledge', 'Letter to Frege 29.12.1899' and 'Two Chief World Systems'

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

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6 ideas

3. Truth / G. Axiomatic Truth / 1. Axiomatic Truth

15716

If axioms and their implications have no contradictions, they pass my criterion of truth and existence [Hilbert]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

23476

Logical constants seem to be entities in propositions, but are actually pure form [Russell]

23477

We use logical notions, so they must be objects - but I don't know what they really are [Russell]

5. Theory of Logic / I. Semantics of Logic / 3. Logical Truth

18273

Logical truths are known by their extreme generality [Russell]

7. Existence / D. Theories of Reality / 8. Facts / d. Negative facts

22315

There can't be a negative of a complex, which is negated by its non-existence [Potter on Russell]

27. Natural Reality / A. Classical Physics / 1. Mechanics / b. Laws of motion

19673

Galileo mathematised movement, and revealed its invariable component - acceleration [Galileo, by Meillassoux]