doc-src/Tutorial/ToyList/lemma1
author nipkow
Mon, 12 Mar 2001 18:23:11 +0100
changeset 11202 f8da11ca4c6e
parent 5377 efb799c5ed3c
permissions -rw-r--r--
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nipkow
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Goal "rev(xs @ ys) = (rev ys) @ (rev xs)";