Combining Texts

Ideas for 'On the Question of Absolute Undecidability', 'In a Different Voice' and 'Elements of Geometry'

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3 ideas

4. Formal Logic / C. Predicate Calculus PC / 2. Tools of Predicate Calculus / c. Derivations rules of PC

13907

If you pick an arbitrary triangle, things proved of it are true of all triangles [Euclid, by Lemmon]

4. Formal Logic / F. Set Theory ST / 1. Set Theory

17884

Mathematical set theory has many plausible stopping points, such as finitism, and predicativism [Koellner]

17893

'Reflection principles' say the whole truth about sets can't be captured [Koellner]