| changeset 58881 | b9556a055632 |
| parent 57398 | 882091eb1e9a |
| child 59954 | 5ee7e9721eac |
--- a/src/HOL/Library/Countable_Set_Type.thy Sun Nov 02 17:16:01 2014 +0100 +++ b/src/HOL/Library/Countable_Set_Type.thy Sun Nov 02 17:20:45 2014 +0100 @@ -5,7 +5,7 @@ Type of (at most) countable sets. *) -header {* Type of (at Most) Countable Sets *} +section {* Type of (at Most) Countable Sets *} theory Countable_Set_Type imports Countable_Set Cardinal_Notations