Combining Texts

All the ideas for 'fragments/reports', 'Elements of Mathematical Logic' and 'On 'Generation and Corruption''

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4 ideas

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]

9. Objects / E. Objects over Time / 8. Continuity of Rivers

579	Cratylus said you couldn't even step into the same river once [Cratylus, by Aristotle]

12. Knowledge Sources / B. Perception / 2. Qualities in Perception / d. Secondary qualities

16721

Changes in secondary qualities are caused by changes in primary qualities [Giles of Orleans]

13. Knowledge Criteria / D. Scepticism / 1. Scepticism

578	Cratylus decided speech was hopeless, and his only expression was the movement of a finger [Cratylus, by Aristotle]