author | wenzelm |
Thu, 07 Sep 2000 20:53:50 +0200 | |
changeset 9897 | 3a50d71323a8 |
parent 9896 | 1319676eb2db |
child 9898 | 5f28e5b4c68e |
--- a/src/HOL/Real/HahnBanach/HahnBanach.thy Thu Sep 07 20:53:02 2000 +0200 +++ b/src/HOL/Real/HahnBanach/HahnBanach.thy Thu Sep 07 20:53:50 2000 +0200 @@ -257,7 +257,7 @@ (rule vs_sum_subspace [OF _ lin_subspace]) have "is_subspace F H" . also from h lin_vs - have [fold H'_def]: "is_subspace H (H + lin x')" .. + have [folded H'_def]: "is_subspace H (H + lin x')" .. finally (subspace_trans [OF _ h]) show f_h': "is_subspace F H'" .