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doc-src/TutorialI/Trie/document/Option2.tex
author wenzelm
Tue, 25 Jul 2000 00:02:52 +0200
changeset 9434 d2fa043ab24f
parent 9145 9f7b8de5bfaf
child 9521 c396d1092430
permissions -rw-r--r--
do nat pass theory value, but sg_ref;

\begin{isabelle}%
\isanewline
\isacommand{datatype}~'a~option~=~None~|~Some~'a\end{isabelle}%
%%% Local Variables:
%%% mode: latex
%%% TeX-master: "root"
%%% End:
isabelle