doc-src/Tutorial/ToyList/lemma1
author paulson
Wed, 27 Jan 1999 10:31:31 +0100
changeset 6153 bff90585cce5
parent 5377 efb799c5ed3c
permissions -rw-r--r--
new typechecking solver for the simplifier
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nipkow
parents:
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Goal "rev(xs @ ys) = (rev ys) @ (rev xs)";