Affines Gruppenschema/K/Inverses Element/Diagramm

${\begin{matrix}G&{\stackrel {S^{*}\times \operatorname {Id} _{G}}{\longrightarrow }}&G\times _{K}G&\\\!\!\!\!\!\iota ^{*}\downarrow &&\downarrow \Delta ^{*}\!\!\!\!\!\!\!\!\!\!\!&\\\operatorname {Spek} {\left(K\right)}&{\stackrel {\epsilon ^{*}}{\longrightarrow }}&G&\!\!\!\!\!\\\end{matrix}}$