Timeline for Automorphisms of the hyperreals over the rationals and nontrivial automorphism groups
Current License: CC BY-SA 3.0
3 events
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| Feb 13, 2018 at 14:59 | comment | added | Mikhail Katz | Hi Ali, if one takes the simple-minded hyperreal field $\mathbb R^{\mathbb N}/\mathcal F$ what can one say about its order-preserving automorphisms? How does it depend on the ultrafilter? | |
| Jan 1, 2017 at 18:30 | history | edited | Ali Enayat | CC BY-SA 3.0 |
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| Jan 1, 2017 at 2:30 | history | answered | Ali Enayat | CC BY-SA 3.0 |