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doc-src/Tutorial/ToyList/lemma1
author
paulson
Mon, 28 Feb 2000 10:48:39 +0100
changeset 8309
a054d5c98b21
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
more bijection theorems
Goal "rev(xs @ ys) = (rev ys) @ (rev xs)";