In this answer, a line of $\LaTeX$ doesn't render. (See the picture.)
It appears that this is happening with other people too.
It happens on the mobile site:
Refreshing the page doesn't make a difference.
Please help :)
EDIT: The post has been edited in the meantime. If you still want to see formula where the problems was manifested, you can check this older version. It is copied also here:
The group $G\cong H\times K$ with $H\cong \langle S_H\mid R_H\rangle$ and $K\cong \langle S_K\mid R_K\rangle$ has as a presentation $$G\cong \langle S_H\cup S_K\mid R_H\cup R_K\cup X\rangle,$$ where $X=\{hk=kh\mid h\in S_H\text{ and } k\in S_K\}$, from which it is easy to see that $H\cong L$ such that $L\unlhd G$. (Why?)
\text{...}
- similarly as in the problematic formulas in the other bug report.) $\endgroup$