\begin{inductive}\label{phase5_nested_wrong_arguments}
    Define $\phasefivewrongargs{A}\subseteq\cumul{A}$ inductively as follows.
    \begin{enumerate}
        \item If $x\in\pow{\phasefivewrongargs{x}}$, then
            $x\in\phasefivewrongargs{A}$.
    \end{enumerate}
\end{inductive}