\begin{exercice}\label{patronescalierversperspective}
\vspace{-1em}
\begin{center}
\begin{tikzpicture}[general, scale=0.75]
 \draw (4,4)--(4,6)--(0,6)--(0,4)--(6,4)--(6,0)--(8,0)--(8,2)--(2,2)--(2,6);
 \draw (4,4)--(4,0)--(6,0);
 
\draw (1,5) node {{\LARGE \boldmath $\forall$}};
\draw (3,3) node {{\LARGE \boldmath $\varnothing$}};
\draw (3,5) node {{\LARGE \boldmath $\exists$}};
\draw (5,3) node {{\LARGE \boldmath $\infty$}};
\draw (5,1) node {{\LARGE \boldmath $\nabla$}};
\draw (7,1) node {{\LARGE \boldmath $\partial$}};
\end{tikzpicture}
\end{center}
 
\end{exercice}
