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doc-src/Tutorial/Datatype/lookupempty.ML
author
nipkow
Thu, 06 Jul 2000 09:46:56 +0200
changeset 9255
2ceb11a2e190
parent 5851
15ce4c1c8313
permissions
-rw-r--r--
*** empty log message ***
Goal "lookup (Trie None []) as = None";
by(case_tac "as" 1);
by(Auto_tac);