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doc-src/Tutorial/ToyList/lemma1
author
paulson
Wed, 23 Apr 2003 13:06:36 +0200
changeset 13919
17d0e17c8efe
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
Got rid of the [iff], which was effectively inserting converseD
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5377
efb799c5ed3c
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nipkow
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changeset
1
Goal "rev(xs @ ys) = (rev ys) @ (rev xs)";