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\title{\includegraphics[scale=0.5]{isabelle_zf} \\[4ex] 

       Isabelle's Logics: FOL and ZF}

\author{{\em Lawrence C. Paulson}\\

        Computer Laboratory \\ University of Cambridge \\

        \texttt{lcp@cl.cam.ac.uk}\\[3ex] 

        With Contributions by Tobias Nipkow and Markus Wenzel%

\thanks{Markus Wenzel made numerous improvements.

    Philippe de Groote contributed to~\ZF{}.  Philippe No\"el and

    Martin Coen made many contributions to~\ZF{}.  The research has 

    been funded by the EPSRC (grants GR/G53279, GR/H40570, GR/K57381,

    GR/K77051) and by ESPRIT project 6453: Types.}

}

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\begin{document}

\maketitle 

\begin{abstract}

This manual describes Isabelle's formalizations of many-sorted first-order

logic (\texttt{FOL}) and Zermelo-Fraenkel set theory (\texttt{ZF}).  See the

\emph{Reference Manual} for general Isabelle commands, and \emph{Introduction

  to Isabelle} for an overall tutorial.

\end{abstract}

\pagenumbering{roman} \tableofcontents \clearfirst

\input{../Logics/syntax}

\include{FOL}

\include{ZF}

\bibliographystyle{plain}

\bibliography{../manual}

\input{logics-ZF.ind}

\end{document}