diff --git a/src/HottBook/Chapter7.lagda.md b/src/HottBook/Chapter7.lagda.md
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+<details>
+  <summary>Imports</summary>
+
+```
+module HottBook.Chapter7 where
+
+open import HottBook.Chapter1
+open import HottBook.Chapter2
+open import HottBook.Chapter3
+open import HottBook.CoreUtil
+
+private
+  variable
+    l l2 : Level
+```
+
+</details>
+