Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Give a Counter Example to show that if $K \unlhd H$ and $H$ is a characteristic of $G$, then K need not be normal in $G$.
I have no idea which type of groups I should look at? Any hint is appreciated!
Required, but never shown
4 years, 3 months ago