diff -r 6fe5a0e1fa8e -r dfcc1882d05a src/HOL/Library/Library.thy
--- a/src/HOL/Library/Library.thy	Sun Oct 27 21:51:14 2019 -0400
+++ b/src/HOL/Library/Library.thy	Sun Nov 03 19:58:02 2019 -0500
@@ -39,6 +39,7 @@
   Indicator_Function
   Infinite_Set
   Interval
+  Interval_Float
   IArray
   Landau_Symbols
   Lattice_Algebras