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\chapter{Presenting Theories}
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\label{ch:thy-present}
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By now the reader should have become sufficiently acquainted with elementary
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theory development in Isabelle/HOL\@. The following interlude describes
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how to present theories in a typographically
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pleasing manner. Isabelle provides a rich infrastructure for concrete syntax
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of the underlying $\lambda$-calculus language (see
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{\S}\ref{sec:concrete-syntax}), as well as document preparation of theory texts
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based on existing PDF-{\LaTeX} technology (see
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{\S}\ref{sec:document-preparation}).
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As pointed out by Leibniz\index{Leibniz, Gottfried Wilhelm} more than 300
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years ago, \emph{notions} are in principle more important than
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\emph{notations}, but suggestive textual representation of ideas is vital to
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reduce the mental effort to comprehend and apply them.
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\input{Documents/document/Documents.tex}
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%%% Local Variables:
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%%% mode: latex
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%%% TeX-master: t
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%%% End:
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