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src/HOL/Library/Set_Algebras.thy
changeset 57512 cc97b347b301
parent 56899 9b9f4abaaa7e
child 57514 bdc2c6b40bf2 
--- a/src/HOL/Library/Set_Algebras.thy	Fri Jul 04 20:07:08 2014 +0200
+++ b/src/HOL/Library/Set_Algebras.thy	Fri Jul 04 20:18:47 2014 +0200
@@ -108,7 +108,7 @@
   done
 
 lemma set_plus_rearrange2: "(a::'a::semigroup_add) +o (b +o C) = (a + b) +o C"
-  by (auto simp add: elt_set_plus_def add_assoc)
+  by (auto simp add: elt_set_plus_def add.assoc)
 
 lemma set_plus_rearrange3: "((a::'a::semigroup_add) +o B) + C = a +o (B + C)"
   apply (auto simp add: elt_set_plus_def set_plus_def)
@@ -216,7 +216,7 @@
 
 lemma set_times_rearrange2:
   "(a::'a::semigroup_mult) *o (b *o C) = (a * b) *o C"
-  by (auto simp add: elt_set_times_def mult_assoc)
+  by (auto simp add: elt_set_times_def mult.assoc)
 
 lemma set_times_rearrange3:
   "((a::'a::semigroup_mult) *o B) * C = a *o (B * C)"
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