
diff -r 5443079512ea -r b5522b51cb1e src/HOL/Algebra/RingHom.thy
--- a/src/HOL/Algebra/RingHom.thy	Sun Mar 21 16:51:37 2010 +0100
+++ b/src/HOL/Algebra/RingHom.thy	Sun Mar 21 17:12:31 2010 +0100
@@ -1,6 +1,5 @@
-(*
-  Title:     HOL/Algebra/RingHom.thy
-  Author:    Stephan Hohe, TU Muenchen
+(*  Title:      HOL/Algebra/RingHom.thy
+    Author:     Stephan Hohe, TU Muenchen
 *)
 
 theory RingHom
@@ -100,6 +99,7 @@
     (rule R.is_cring, rule S.is_cring, rule homh)
 qed
 
+
 subsection {* The Kernel of a Ring Homomorphism *}
 
 --"the kernel of a ring homomorphism is an ideal"




