Combining Texts

All the ideas for 'fragments/reports', 'Principles of Theoretical Logic' and 'Demonstratives'

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

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5 ideas

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]

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]

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]

19. Language / C. Assigning Meanings / 10. Two-Dimensional Semantics

14894

Indexicals have a 'character' (the standing meaning), and a 'content' (truth-conditions for one context) [Kaplan, by Macià/Garcia-Carpentiro]

14700

'Content' gives the standard modal profile, and 'character' gives rules for a context [Kaplan, by Schroeter]