I've created a multi-line set like this:
\begin{align*}
\Set{ \begin{array}{l}
(1, 2),(1, 3),(1, 4),(1, 5),(1, 6),(1, 7),(1, 8),(1, 9),(1, 10),\\
(2, 1), (2, 2), (2, 3), (2, 4), (2, 5),(2, 6), (2, 7), (2, 8), (2, 9), (2, 20),\\
\vdots\\
(10, 1), (10, 2), (10, 3), (10, 4), (10, 5),(10, 6), (10, 7), (10, 8), (10, 9), (10, 10)
\end{array}}
\end{align*}
I'm getting this right now:
Ideally, I would want each individual line to be horizontally centred, as well as the \vdots.
Apologies if this isn't the correct way to go about the task at hand; I'm a LaTeX rookie.


\begin{array}{c}(cinstead ofl). – CarLaTeX Jul 29 '19 at 19:39