diff -r e7ee815b04bf -r feebdaa346e5 src/HOL/Library/IArray.thy
--- a/src/HOL/Library/IArray.thy	Sun Nov 15 07:17:05 2020 +0000
+++ b/src/HOL/Library/IArray.thy	Sun Nov 15 07:17:06 2020 +0000
@@ -89,7 +89,8 @@
   "IArray.all p = Not \<circ> IArray.exists (Not \<circ> p)"
   by (simp add: fun_eq_iff)
 
-context term_syntax
+context
+  includes term_syntax
 begin
 
 lemma [code]: