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Results tagged with examples
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user 26705
For questions requesting examples of a certain structure or phenomenon
8
votes
Examples of set theory problems which are solved using methods outside of logic
Inspired by Joel David Hamkin's comment---Simon Thomas has provided applications of various super-ridigity theorems (from the ergodic theory of group actions) to the theory of the Borel complexity of …
- 2,146
2
votes
What are the most attractive Turing undecidable problems in mathematics?
Note that any set of intermediate Turing degree must lie in $L$; so I nominate the least such, with respect to the canonical ordering of $L$.
I suppose this set might have already been mentioned--it' …
- 2,146