changeset 13553 | 855f6bae851e |
parent 13550 | 5a176b8dda84 |
child 13596 | ee5f79b210c1 |
--- a/src/HOL/HOL.thy Sun Sep 01 19:39:25 2002 +0200 +++ b/src/HOL/HOL.thy Mon Sep 02 11:07:26 2002 +0200 @@ -651,7 +651,7 @@ apply (rule order_refl) done -lemma order_less_irrefl [simp]: "~ x < (x::'a::order)" +lemma order_less_irrefl [iff]: "~ x < (x::'a::order)" by (simp add: order_less_le) lemma order_le_less: "((x::'a::order) <= y) = (x < y | x = y)"