Non-generator of a finite group (source code)

= Non-generator of a finite group
{title2=$\langle S,g\rangle=G\Longrightarrow\langle S\rangle=G$}

= Non-generator
{synonym}

An element that can always be omitted from a generating family. These are exactly the elements of the <Frattini subgroup>: a proper generated subgroup is contained in a maximal subgroup, while an element outside a maximal subgroup generates the group together with it.