Combining Texts

All the ideas for 'On the Question of Absolute Undecidability', 'Nonexistent Objects' and 'Are Freedom and Equality Compatible?'

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12 ideas

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]
5. Theory of Logic / K. Features of Logics / 5. Incompleteness
17894 We have no argument to show a statement is absolutely undecidable [Koellner]
6. Mathematics / A. Nature of Mathematics / 5. The Infinite / i. Cardinal infinity
17890 There are at least eleven types of large cardinal, of increasing logical strength [Koellner]
6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / d. Peano arithmetic
17887 PA is consistent as far as we can accept, and we expand axioms to overcome limitations [Koellner]
6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / g. Incompleteness of Arithmetic
17891 Arithmetical undecidability is always settled at the next stage up [Koellner]
9. Objects / A. Existence of Objects / 4. Impossible objects
18948 There is an object for every set of properties (some of which exist, and others don't) [Parsons,T, by Sawyer]
25. Social Practice / A. Freedoms / 5. Freedom of lifestyle
21733 The right-wing conception of freedom is based on the idea of self-ownership [Cohen,GA]
21739 Plenty of people have self-ownership, but still lack autonomy [Cohen,GA]
25. Social Practice / C. Rights / 4. Property rights
21736 It is doubtful whether any private property was originally acquired legitimately [Cohen,GA]
21734 It is plausible that no one has an initial right to own land and natural resources [Cohen,GA]
21735 Every thing which is now private started out as unowned [Cohen,GA]