abstract algebra
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abstract algebra
Construct a group $G$ such that $G$ has a normal subgroup $N$ and $N$ has a normal subgroup $M$ (i.e. $N\vartriangleleft{G}\,,\; M\vartriangleleft{N}$), yet $M$ is not normal in $G$.
Last edited by admin on Sun Feb 11, 2018 2:51 pm, edited 1 time in total.
Reason: Replace image file with LaTeX
Reason: Replace image file with LaTeX
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