test/phase5/exact-set-marker.tex


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\begin{definition}\label{set}
    $x$ is a bar iff $x = x$.
\end{definition}

\begin{proposition}\label{phase5_marker_only_set_noun}
    Let $x$ be a bar.
    Then $x$ is a bar.
\end{proposition}
\begin{proof}
    Follows by assumption.
\end{proof}