changeset 63476 | ff1d86b07751 |
parent 63462 | c1fe30f2bc32 |
child 66251 | cd935b7cb3fb |
--- a/src/HOL/Library/Mapping.thy Wed Jul 13 15:23:33 2016 +0200 +++ b/src/HOL/Library/Mapping.thy Wed Jul 13 19:02:23 2016 +0200 @@ -74,11 +74,11 @@ (\<lambda>k. if k < length xs then Some (xs ! k) else None) (\<lambda>k. if k < length ys then Some (ys ! k) else None)" apply induct - apply auto + apply auto unfolding rel_fun_def apply clarsimp apply (case_tac xa) - apply (auto dest: list_all2_lengthD list_all2_nthD) + apply (auto dest: list_all2_lengthD list_all2_nthD) done qed