--- a/src/HOL/Real_Vector_Spaces.thy Thu Jun 28 14:14:05 2018 +0100 +++ b/src/HOL/Real_Vector_Spaces.thy Thu Jun 28 17:14:40 2018 +0100 @@ -1092,7 +1092,7 @@ then show ?thesis by simp qed - + subclass uniform_space proof fix E x