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src/HOL/Multivariate_Analysis/Linear_Algebra.thy
changeset 60810 9ede42599eeb
parent 60800 7d04351c795a
child 60974 6a6f15d8fbc4 
--- a/src/HOL/Multivariate_Analysis/Linear_Algebra.thy	Tue Jul 28 16:16:13 2015 +0100
+++ b/src/HOL/Multivariate_Analysis/Linear_Algebra.thy	Tue Jul 28 17:15:01 2015 +0100
@@ -1203,7 +1203,7 @@
     show ?lhs
       using i False
       apply (auto simp add: dependent_def)
-      by (metis in_span_insert insert_Diff insert_Diff_if insert_iff)
+      by (metis in_span_insert insert_Diff_if insert_Diff_single insert_absorb)
   qed
 qed
isabelle