doc-src/Tutorial/ToyList/thm
author paulson
Wed, 22 Dec 1999 17:16:53 +0100
changeset 8073 6c99b44b333e
parent 5377 efb799c5ed3c
permissions -rw-r--r--
new weakening laws
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nipkow
parents:
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Goal "rev(rev xs) = xs";