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+++ b/doc-src/TutorialI/Documents/documents.tex Thu Jul 26 18:55:42 2012 +0200
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+
+\chapter{Presenting Theories}
+\label{ch:thy-present}
+
+By now the reader should have become sufficiently acquainted with elementary
+theory development in Isabelle/HOL\@. The following interlude describes
+how to present theories in a typographically
+pleasing manner. Isabelle provides a rich infrastructure for concrete syntax
+of the underlying $\lambda$-calculus language (see
+{\S}\ref{sec:concrete-syntax}), as well as document preparation of theory texts
+based on existing PDF-{\LaTeX} technology (see
+{\S}\ref{sec:document-preparation}).
+
+As pointed out by Leibniz\index{Leibniz, Gottfried Wilhelm} more than 300
+years ago, \emph{notions} are in principle more important than
+\emph{notations}, but suggestive textual representation of ideas is vital to
+reduce the mental effort to comprehend and apply them.
+
+\input{document/Documents.tex}
+
+%%% Local Variables:
+%%% mode: latex
+%%% TeX-master: t
+%%% End: