doc-src/Tutorial/Misc/Tree.thy
author wenzelm
Wed, 26 Sep 2001 22:25:23 +0200
changeset 11573 4f85af77038f
parent 5377 efb799c5ed3c
permissions -rw-r--r--
bold symbols;

Tree = Main +
datatype 'a tree = Tip | Node ('a tree) 'a ('a tree)
end