### Boole’s Rings

- Generalizations of Laver tables Abridged posted! March 21, 2017 Joseph Van Name
- Stationary preserving permutations are the identity on a club March 20, 2017 Asaf Karagila
- Ternary Laver table calculator (now with a local and a global calculator) March 16, 2017 Joseph Van Name
- overlay journals March 16, 2017 Peter Krautzberger
- Computable processes which produce any desired output in the right nonstandard model March 15, 2017 Victoria Gitman

### Comments on Boole’s Rings

- Comment on All triangles are isosceles by Joel David Hamkins March 13, 2017 Comments for Joel David Hamkins
- Comment on All triangles are isosceles by Spring Beauty (@SpringBeautyDJ) March 12, 2017 Comments for Joel David Hamkins
- Comment on All triangles are isosceles by Joel David Hamkins March 11, 2017 Comments for Joel David Hamkins
- Comment on Buckets of fish! by Buckets of Fish and Defeating Hydras | Mike's Math Page March 11, 2017 Comments for Joel David Hamkins
- Comment on All triangles are isosceles by Spring Beauty (@SpringBeautyDJ) March 11, 2017 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
Leave a comment