Fix guidance for subclassing collections.Set()
diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index 5bb3569..f00b870 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -1028,7 +1028,7 @@
 
 (2)
    To override the comparisons (presumably for speed, as the
-   semantics are fixed), redefine :meth:`__le__` and
+   semantics are fixed), redefine :meth:`__le__` and :meth:`__ge__`,
    then the other operations will automatically follow suit.
 
 (3)
diff --git a/Lib/_abcoll.py b/Lib/_abcoll.py
index a943263..3d567e3 100644
--- a/Lib/_abcoll.py
+++ b/Lib/_abcoll.py
@@ -143,7 +143,7 @@
     methods except for __contains__, __iter__ and __len__.
 
     To override the comparisons (presumably for speed, as the
-    semantics are fixed), all you have to do is redefine __le__ and
+    semantics are fixed), redefine __le__ and __ge__,
     then the other operations will automatically follow suit.
     """