Skip to main content
3 events
when toggle format what by license comment
Nov 3, 2014 at 19:21 comment added Emil Jeřábek Maybe I should also stress that the conditions on $S$ are necessary even in the simplest possible case: if $ua=ub$ for distinct $a,b\in S$ and $u\ne0$, the degree $1$ univariate polynomial $u(x-a)$ has at least two zeros in $S$.
Nov 3, 2014 at 18:29 vote accept Thomas Klimpel
Nov 3, 2014 at 15:59 history answered Emil Jeřábek CC BY-SA 3.0