Mercurial Mercurial > repos > isabelle / diff
summary | shortlog | changelog | graph | tags | bookmarks | branches | files | changeset | file | latest | revisions | annotate | diff | comparison | raw | help
Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
src/HOL/Quotient_Examples/DList.thy
changeset 45129 1fce03e3e8ad
parent 44263 971d1be5d5ce
child 45990 b7b905b23b2a 
--- a/src/HOL/Quotient_Examples/DList.thy	Wed Oct 12 16:21:07 2011 +0200
+++ b/src/HOL/Quotient_Examples/DList.thy	Wed Oct 12 20:16:48 2011 +0200
@@ -45,7 +45,7 @@
   assumes "remdups xa = remdups ya"
     shows "remdups (map f xa) = remdups (map f ya)"
   using assms
-  by (induct xa ya arbitrary: fx fy rule: list_induct2')
+  by (induct xa ya rule: list_induct2')
      (metis (full_types) remdups_nil_noteq_cons(2) remdups_map_remdups)+
 
 lemma remdups_eq_member_eq:
isabelle