doc-src/Tutorial/ToyList/lemma1
author wenzelm
Mon, 10 Jan 2000 17:08:41 +0100
changeset 8117 0a6173c9b2d0
parent 5377 efb799c5ed3c
permissions -rw-r--r--
isabellesimple: avoid paragraph;
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nipkow
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Goal "rev(xs @ ys) = (rev ys) @ (rev xs)";