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doc-src/Tutorial/ToyList/lemma1
author
wenzelm
Wed, 25 Nov 1998 20:55:25 +0100
changeset 5973
040f6d2af50d
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
removed prs / prs_fn;
Goal "rev(xs @ ys) = (rev ys) @ (rev xs)";