diff -r 73acb8c187d4 Doc/reference/expressions.rst --- a/Doc/reference/expressions.rst Mon Jun 08 12:44:43 2015 +0300 +++ b/Doc/reference/expressions.rst Mon Jun 08 12:20:45 2015 +0100 @@ -1117,7 +1117,7 @@ * Sets and frozensets define comparison operators to mean subset and superset tests. Those relations do not define total orderings (the two sets ``{1,2}`` - and {2,3} are not equal, nor subsets of one another, nor supersets of one + and ``{2,3}`` are not equal, nor subsets of one another, nor supersets of one another). Accordingly, sets are not appropriate arguments for functions which depend on total ordering. For example, :func:`min`, :func:`max`, and :func:`sorted` produce undefined results given a list of sets as inputs.