doc-src/TutorialI/Misc/document/fakenat.tex
author wenzelm
Sun, 28 Aug 2005 19:42:19 +0200
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\begin{isabellebody}%
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\def\isabellecontext{fakenat}%
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\isadelimtheory
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\endisadelimtheory
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\isatagtheory
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\isamarkupfalse%
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\endisatagtheory
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{\isafoldtheory}%
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\isadelimtheory
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\endisadelimtheory
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\begin{isamarkuptext}%
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\noindent
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The type \tydx{nat} of natural
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numbers is predefined to have the constructors \cdx{0} and~\cdx{Suc}.  It  behaves as if it were declared like this:%
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\end{isamarkuptext}%
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\isamarkuptrue%
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\isacommand{datatype}\isamarkupfalse%
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\ nat\ {\isacharequal}\ {\isadigit{0}}\ {\isacharbar}\ Suc\ nat%
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\isadelimtheory
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\endisadelimtheory
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\isatagtheory
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\isamarkupfalse%
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\endisatagtheory
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{\isafoldtheory}%
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\isadelimtheory
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\endisadelimtheory
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\end{isabellebody}%
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%%% Local Variables:
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%%% mode: latex
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%%% TeX-master: "root"
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%%% End: