| changeset 58249 | 180f1b3508ed |
| parent 52435 | 6646bb548c6b |
| child 58310 | 91ea607a34d8 |
--- a/src/HOL/Library/Parallel.thy Tue Sep 09 17:51:07 2014 +0200 +++ b/src/HOL/Library/Parallel.thy Tue Sep 09 20:51:36 2014 +0200 @@ -8,7 +8,7 @@ subsection {* Futures *} -datatype 'a future = fork "unit \<Rightarrow> 'a" +datatype_new 'a future = fork "unit \<Rightarrow> 'a" primrec join :: "'a future \<Rightarrow> 'a" where "join (fork f) = f ()"