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type class relaxation
authorpaulson <lp15@cam.ac.uk>
Mon, 22 Mar 2021 12:18:35 +0000
changeset 73470 76095cffcc2b
parent 73465 1e5c1f8a35cd
child 73471 d6209de30edc
type class relaxation
src/HOL/Library/Multiset.thy file | annotate | diff | comparison | revisions 
--- a/src/HOL/Library/Multiset.thy	Mon Mar 22 00:07:55 2021 +0100
+++ b/src/HOL/Library/Multiset.thy	Mon Mar 22 12:18:35 2021 +0000
@@ -2329,7 +2329,7 @@
 
 end
 
-context ordered_cancel_comm_monoid_diff
+context cancel_comm_monoid_add
 begin
 
 lemma sum_mset_diff:
isabelle