<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.15.3/dist/katex.min.css">
<script src="https://cdn.jsdelivr.net/npm/katex@0.15.3/dist/katex.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/katex@0.15.3/dist/contrib/auto-render.min.js"></script>
<script>
"use strict";
document.addEventListener("DOMContentLoaded", function () {
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