Zulip Chat Archive

Stream: Is there code for X?

Topic: Ordered subfields


Artie Khovanov (Jan 03 2026 at 01:43):

Let KK be an ordered field, and L/KL/K a field extension (LL not necessarily ordered). I can't find anything about the ordered intermediate extensions of KK, as terms of a type such as IntermediateField (probably we want a fresh type). What I need is the "ordered extension" relation and existence of directed unions under this relation. Is there anything at all in this direction?

Filippo A. E. Nuccio (Jan 04 2026 at 23:41):

There is a "similar" result for nonarchimedean norms in docs#exists_nonarchimedean_pow_mul_seminorm_of_finiteDimensional

Artie Khovanov (Jan 05 2026 at 04:42):

Extension of nonarchimedean norms has some mathematical content, whereas (I think) what I'm looking for is mathematically trivial?


Last updated: Feb 28 2026 at 14:05 UTC