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doc-src/Tutorial/Misc/exhaust.ML
author obua
Sun, 09 May 2004 23:04:36 +0200
changeset 14722 8e739a6eaf11
parent 9255 2ceb11a2e190
permissions -rw-r--r--
replaced apply-style proof for instance Multiset :: plus_ac0 by recommended Isar proof style
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
5377
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     1
 
Goal "(case xs of [] => [] | y#ys => xs) = xs";
9255
2ceb11a2e190 *** empty log message ***
nipkow
parents: 5377
diff changeset 
     2
 
by(case_tac "xs" 1);
isabelle