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doc-src/Tutorial/Misc/exhaust.ML
author
wenzelm
Thu, 14 Dec 2000 19:37:09 +0100
changeset 10672
3b1c2d74a01b
parent 9255
2ceb11a2e190
permissions
-rw-r--r--
use \<Sum> from main HOL;
Goal "(case xs of [] => [] | y#ys => xs) = xs";
by(case_tac "xs" 1);