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doc-src/Tutorial/Misc/tree
author
paulson
Wed, 05 Jul 2000 18:27:55 +0200
changeset 9251
bd57acd44fc1
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
more tidying. also generalized some tactics to prove "Type A" and "a = b : A" judgements
datatype 'a tree = Tip | Node ('a tree) 'a ('a tree)