### Boole’s Rings

- Fifteen fun problems September 29, 2016 Dana C. Ernst
- Bootcamp 4 – Ramsey DocCourse Prague 2016 September 28, 2016 Mike Pawliuk
- The 5 groups of order 8 September 28, 2016 Dana C. Ernst
- Bootcamp 3 – Ramsey DocCourse Prague 2016 September 27, 2016 Mike Pawliuk
- A (new) favorite math book September 27, 2016 Dana C. Ernst

### Comments on Boole’s Rings

- Comment on Bootcamp 3 – Ramsey DocCourse Prague 2016 by Ramsey DocCourse Prague 2016 – Index September 28, 2016 Comments for Mike Pawliuk
- Comment on Bootcamp 3 – Ramsey DocCourse Prague 2016 by Bootcamp 4 – Ramsey DocCourse Prague 2016 September 28, 2016 Comments for Mike Pawliuk
- Comment on Bootcamp 3 – Ramsey DocCourse Prague 2016 by Ramsey DocCourse Prague 2016 – Index September 27, 2016 Comments for Mike Pawliuk
- Comment on Upward countable closure in the generic multiverse of forcing to add a Cohen real by Upward closure and amalgamation in the generic multiverse of a countable model of set theory | Joel David Hamkins September 21, 2016 Comments for Joel David Hamkins
- Comment on An introduction to Boolean ultrapowers, Bonn, 2011 by Upward closure and amalgamation in the generic multiverse of a countable model of set theory | Joel David Hamkins September 21, 2016 Comments for Joel David Hamkins

# Monthly Archives: January 2012

## An incompleteness theorem for β_{n} models

My first paper was “An incompleteness theorem for $\beta_n$ models” with Stephen Simpson [1]. It’s a short paper, but the idea is very pretty. We know that the incompleteness theorem implies there are strange models of arithmetic, but these models … Continue reading

Posted in Papers, Research
2 Comments

## AMS/ASL Special Session on Alan Turing

I arrived home yesterday from the 2012 Joint Mathematics Meetings in Boston, where I was a co-organizer of the AMS/ASL Special Session on the Life and Legacy of Alan Turing. The talks were wonderful, and the session went very smoothly, … Continue reading

Posted in Meetings
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