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doc-src/Tutorial/ToyList/lemma1
author
paulson
Fri, 16 Jun 2000 13:15:04 +0200
changeset 9074
2313ddc415a1
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
inserted some "addsimps [subset_empty]"; also tidied (a lot)
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5377
efb799c5ed3c
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nipkow
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diff
changeset
1
Goal "rev(xs @ ys) = (rev ys) @ (rev xs)";