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src/HOL/Matrix_LP/Matrix.thy
changeset 54864 a064732223ad
parent 54230 b1d955791529
child 57512 cc97b347b301 
--- a/src/HOL/Matrix_LP/Matrix.thy	Wed Dec 25 17:39:06 2013 +0100
+++ b/src/HOL/Matrix_LP/Matrix.thy	Wed Dec 25 17:39:07 2013 +0100
@@ -1270,7 +1270,7 @@
   apply (simp add: Rep_matrix_inject[THEN sym])
   apply (rule ext)+
   using assms
-  apply (simp add: Rep_mult_matrix max_ac)
+  apply (simp add: Rep_mult_matrix ac_simps)
   done
 
 lemma column_transpose_matrix: "column_of_matrix (transpose_matrix A) n = transpose_matrix (row_of_matrix A n)"
isabelle