diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst
index 0465706f75a..c2c274d1987 100644
--- a/Doc/library/stdtypes.rst
+++ b/Doc/library/stdtypes.rst
@@ -1461,11 +1461,21 @@ operations:
 
    Test whether every element in the set is in *other*.
 
+.. method:: set < other
+
+   Test whether the set is a true subset of *other*, that is,
+   ``set <= other and set != other``.
+
 .. method:: set.issuperset(other)
             set >= other
 
    Test whether every element in *other* is in the set.
 
+.. method:: set > other
+
+   Test whether the set is a true superset of *other*, that is,
+   ``set >= other and set != other``.
+
 .. method:: set.union(other)
             set | other