Combining Texts

All the ideas for 'Elements of Mathematical Logic', 'Conceptions of Truth' and 'Human Knowledge: its scope and limits'

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7 ideas

2. Reason / D. Definition / 12. Paraphrase

18491

The idea of 'making' can be mere conceptual explanation (like 'because') [Künne]

4. Formal Logic / E. Nonclassical Logics / 3. Many-Valued Logic

8942	Lukasiewicz's L3 logic has three truth-values, T, F and I (for 'indeterminate') [Lukasiewicz, by Fisher]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / c. not

16489

Is it possible to state every possible truth about the whole course of nature without using 'not'? [Russell]

10. Modality / A. Necessity / 6. Logical Necessity

16490

Some facts about experience feel like logical necessities [Russell]

12. Knowledge Sources / D. Empiricism / 5. Empiricism Critique

16488

It is hard to explain how a sentence like 'it is not raining' can be found true by observation [Russell]

19. Language / F. Communication / 3. Denial

16491

If we define 'this is not blue' as disbelief in 'this is blue', we eliminate 'not' as an ingredient of facts [Russell]

27. Natural Reality / A. Classical Physics / 1. Mechanics / a. Explaining movement

4786	Russell's 'at-at' theory says motion is to be at the intervening points at the intervening instants [Russell, by Psillos]