doc-src/Tutorial/Misc/Tree.thy
author nipkow
Fri, 24 Nov 2000 16:49:27 +0100
changeset 10519 ade64af4c57c
parent 5377 efb799c5ed3c
permissions -rw-r--r--
hide many names from Datatype_Universe.

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