--- a/src/HOL/Real/HahnBanach/Subspace.thy Fri Jun 17 11:35:35 2005 +0200
+++ b/src/HOL/Real/HahnBanach/Subspace.thy Fri Jun 17 16:12:49 2005 +0200
@@ -5,7 +5,7 @@
header {* Subspaces *}
-theory Subspace = VectorSpace:
+theory Subspace imports VectorSpace begin
subsection {* Definition *}