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doc-src/Tutorial/ToyList/lemma1
author
paulson
Thu, 10 Sep 1998 18:07:06 +0200
changeset 5475
410172655d64
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
equals0D
Goal "rev(xs @ ys) = (rev ys) @ (rev xs)";