--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/doc-src/Tutorial/Misc/Tree.thy Wed Aug 26 17:27:27 1998 +0200 @@ -0,0 +1,3 @@ +Tree = Main + +datatype 'a tree = Tip | Node ('a tree) 'a ('a tree) +end