doc-src/TutorialI/ToyList2/ROOT.ML
author krauss
Wed, 06 Feb 2008 16:06:40 +0100
changeset 26044 32889481ec4c
parent 8745 13b32661dde4
permissions -rw-r--r--
lemma wf_union_compatible: "wf R ==> wf S ==> S O R <= R ==> wf (R Un S)"

use_thy "ToyList";