changeset 55531 | 601ca8efa000 |
parent 55518 | 1ddb2edf5ceb |
child 55867 | 79b915f26533 |
--- a/src/HOL/Option.thy Mon Feb 17 13:31:42 2014 +0100 +++ b/src/HOL/Option.thy Mon Feb 17 13:31:42 2014 +0100 @@ -11,8 +11,7 @@ datatype_new 'a option = =: None | Some (the: 'a) - -datatype_new_compat option +datatype_compat option lemma [case_names None Some, cases type: option]: -- {* for backward compatibility -- names of variables differ *}