\(\newcommand{\identity}{\mathrm{id}} \newcommand{\notdivide}{{\not{\mid}}} \newcommand{\notsubset}{\not\subset} \newcommand{\lcm}{\operatorname{lcm}} \newcommand{\gf}{\operatorname{GF}} \newcommand{\inn}{\operatorname{Inn}} \newcommand{\aut}{\operatorname{Aut}} \newcommand{\Hom}{\operatorname{Hom}} \newcommand{\cis}{\operatorname{cis}} \newcommand{\chr}{\operatorname{char}} \newcommand{\Null}{\operatorname{Null}} \newcommand{\tikzspacer}{ \draw (-8,0) circle (0.02); \draw (8,0) circle (0.02); } \newcommand{\eqnspacer}{\hspace{25pt}} \usepackage{cancel} \usepackage{multirow} \usepackage{hhline} \newcommand{\lt}{<} \newcommand{\gt}{>} \newcommand{\amp}{&} \)