Models of expansions of N with no end extensions

Details Models of expansions of N with no end extensions Models of expansions of N with no end extensions

2008-08-21

arxiv.org/abs/0808.2960v2

Mathematics

Logic

Scientific paper

We deal with models of Peano arithmetic (specifically with a question of Ali Enayat). The methods are from creature forcing. We find an expansion of N such that its theory has models with no (elementary) end extensions. In fact there is a Borel uncountable set of subsets of N such that expanding N by any uncountably many of them suffice. Also we find arithmetically closed A with no definably closed ultrafilter on it.

Affiliated with

Also associated with

No associations

Rating

Models of expansions of N with no end extensions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Models of expansions of N with no end extensions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Models of expansions of N with no end extensions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-219860