- expository
- math
- logic
- lolbvious
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Three funny proofs of the existence of incomparable Turing degrees
Nuking incomparable mosquitoes with forcing, measure and category, and absoluteness
A perfect set of not-eventually-equal reals
clarification on a remark by Greg Hjorth
What's difficult about forcing?
An introductory overview of forcing, from the learner's perspective
Well-ordering of the reals is not measurable
An example of a nonmeasurable set that occurs in logic