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src/HOL/Analysis/Convex_Euclidean_Space.thy
changeset 67155 9e5b05d54f9d
parent 67135 1a94352812f4
child 67399 eab6ce8368fa 
--- a/src/HOL/Analysis/Convex_Euclidean_Space.thy	Thu Dec 07 11:14:32 2017 +0100
+++ b/src/HOL/Analysis/Convex_Euclidean_Space.thy	Thu Dec 07 15:48:50 2017 +0100
@@ -7262,7 +7262,7 @@
       unfolding 2
       apply clarsimp
       apply (subst euclidean_dist_l2)
-      apply (rule order_trans [OF setL2_le_sum])
+      apply (rule order_trans [OF L2_set_le_sum])
       apply (rule zero_le_dist)
       unfolding e'
       apply (rule sum_mono)
isabelle