mathjax を手動で導入し，デリミタも手動で設定する

book.toml

@@ -5,12 +5,7 @@ multilingual = false
 src = "src"
 title = "Mathematics in type theory 日本語版"
 
-[preprocessor.katex]
-after = ["links"]
-command = "mdbook-katex"
-
 [output.html]
-mathjax-support = true
 git-repository-url = "https://github.com/Seasawher/math-in-type-theory-ja"
 
 # 日本語検索に対応していないため，無効にする

theme/header.hbs

@@ -0,0 +1,9 @@
+<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
+<script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
+<script>
+  window.MathJax = {
+    tex: {
+      inlineMath: [['$', '$'], ['\\(', '\\)']]
+    }
+  };
+</script>