Initial commit.

part1.tex

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+\part{The First Part}
+\label{part:first}
+
+The following are the contents for the first part.
+
+\chapter{The First Chapter}
+\label{chapter:first}
+
+Say hello to the first chapter. Test command: $\test$.
+
+\begin{theorem}[Example Theorem]
+    \label{theorem:example}
+
+    Example theorem content.
+\end{theorem}
+\begin{proof}
+    See \cite[Page 120]{Example}.
+\end{proof}
+
+