changeset 3042 | 21cd332b65d3 |
parent 3006 | 8a1eb4531fbb |
child 3107 | 492a3d5d2b17 |
--- a/NEWS Thu Apr 24 18:07:35 1997 +0200 +++ b/NEWS Thu Apr 24 18:38:30 1997 +0200 @@ -86,6 +86,9 @@ *** HOL *** +* a generic induction tactic `induct_tac' which works for all datatypes and +also for type `nat'. + * patterns in case expressions allow tuple patterns as arguments to constructors, for example `case x of [] => ... | (x,y,z)#ps => ...'