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doc-src/TutorialI/Trie/document/Option2.tex
author
nipkow
Tue, 25 Apr 2000 08:09:10 +0200
changeset 8771
026f37a86ea7
parent 8749
2665170f104a
child 9145
9f7b8de5bfaf
permissions
-rw-r--r--
*** empty log message ***
\begin{isabelle}%
\isanewline
\isacommand{datatype}~'a~option~=~None~|~Some~'a\end{isabelle}%