Minimal left covering net of a compact group (source code)

= Minimal left covering net of a compact group
{title2=$G=FV,\qquad |F|=\min\{|E|:G=EV\}$}

= Minimal left covering nets of a compact group
{synonym}

For an open identity neighbourhood $V$ in a compact <topological group>, a finite left covering net is a finite set $F$ such that the left translates $fV$, $f\in F$, cover the group. Compactness gives such finite sets; minimum cardinality gives a minimal one. Left translation preserves minimality because $G=FV$ implies $G=gFV$.