Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options answers only not deleted user 3199
6 votes

Is the hierarchy of relative geometric constructibility by straightedge and compass a dense ...

I've figured out how to do the finite graph case, in the negative. The ordering of quadratically closed fields is not dense in that case either. Throughout let $qcl(F)$ denote the quadratic closure …
Pace Nielsen's user avatar
  • 18.7k
19 votes
Accepted

Is the hierarchy of relative geometric constructibility by straightedge and compass a dense ...

There are three answers. Throughout let $qcl(F)$ be the quadratic closure of a field $F$ inside $\mathbb{C}$. Part 1: Yes there is a quadratically closed field strictly between $qcl(\mathbb{Q})$ and …
Pace Nielsen's user avatar
  • 18.7k