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doc-src/Tutorial/ToyList/lemma1
author
wenzelm
Fri, 25 Sep 1998 14:32:36 +0200
changeset 5570
ae1b56ef16b0
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
improved;
Goal "rev(xs @ ys) = (rev ys) @ (rev xs)";