From a7b46d4b0204571ba9124accebc84f77ae0bed26 Mon Sep 17 00:00:00 2001
From: Josh Chen
Date: Thu, 30 Aug 2018 00:45:08 +0200
Subject: Add leq relation to meta-ordinals, it helps with proofs

---
 Empty.thy | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Empty.thy')

diff --git a/Empty.thy b/Empty.thy
index 1b339ba..8f5cc8c 100644
--- a/Empty.thy
+++ b/Empty.thy
@@ -17,7 +17,7 @@ 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)"
 
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