1 files changed, 2 insertions, 2 deletions
diff --git a/Empty.thy b/Empty.thy
index 8f5cc8c..a42f7ff 100644
--- a/Empty.thy
+++ b/Empty.thy
@@ -17,9 +17,9 @@ axiomatization
   Empty :: Term  ("\<zero>") and
   indEmpty :: "Term \<Rightarrow> Term"  ("(1ind\<^sub>\<zero>)")
 where
-  Empty_form: "\<zero>: U(O)"
+  Empty_form: "\<zero>: U O"
 and
-  Empty_elim: "\<lbrakk>C: \<zero> \<longrightarrow> U(i); z: \<zero>\<rbrakk> \<Longrightarrow> ind\<^sub>\<zero>(z): C(z)"
+  Empty_elim: "\<lbrakk>C: \<zero> \<longrightarrow> U i; z: \<zero>\<rbrakk> \<Longrightarrow> ind\<^sub>\<zero> z: C z"
 
 
 text "Rule attribute declarations:"