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doc-src/Tutorial/ToyList/lemma1
author
wenzelm
Thu, 04 Feb 1999 18:14:27 +0100
changeset 6224
0c08846be6f3
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
fail_safe close; added sys_unpack hook; added pwd; removed join_info;
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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)";