\documentclass[10pt, conference, compsocconf]{IEEEtran}
\usepackage{isabelle,isabellesym}

%\usepackage{amssymb}
  %for \<leadsto>, \<box>, \<diamond>, \<sqsupset>, \<mho>, \<Join>,
  %\<lhd>, \<lesssim>, \<greatersim>, \<lessapprox>, \<greaterapprox>,
  %\<triangleq>, \<yen>, \<lozenge>

%\usepackage[greek,english]{babel}
  %option greek for \<euro>
  %option english (default language) for \<guillemotleft>, \<guillemotright>

%\usepackage[only,bigsqcap]{stmaryrd}
  %for \<Sqinter>

%\usepackage{eufrak}
  %for \<AA> ... \<ZZ>, \<aa> ... \<zz> (also included in amssymb)

%\usepackage{textcomp}
  %for \<onequarter>, \<onehalf>, \<threequarters>, \<degree>, \<cent>,
  %\<currency>

% this should be the last package used
\usepackage{mathpartir}
\usepackage{pdfsetup}

% urls in roman style, theory text in math-similar italics
\urlstyle{rm}
\isabellestyle{it}

% for uniform font size
%\renewcommand{\isastyle}{\isastyleminor}


\begin{document}

\title{A Formalised Theory of Turing Machines in Isabelle/HOL}


\author{
\IEEEauthorblockN{Xu Jian, Xingyuan Zhang}
\IEEEauthorblockA{PLA University of Science and Technology Nanjing, China}
\and
\IEEEauthorblockN{Christian Urban}
\IEEEauthorblockA{King's College London, UK}
}

\maketitle


\begin{abstract}
Isabelle/HOL is an interactive theorem prover based on classical 
logic. While classical reasoning allow users to take convenient 
shortcuts in some proofs, it precludes \emph{direct} reasoning about 
decidability: every boolean predicate is either true or false
because of the law of excluded middle. The only way to reason
about decidability in a classical theorem prover, like Isabelle/HOL,
is to formalise a concrete model for computation. In this paper
we formalise Turing machines and relate them to register machines.

\end{abstract}

\begin{IEEEkeywords}
Turing Machines, Decidability, Isabelle/HOL;
\end{IEEEkeywords}


\IEEEpeerreviewmaketitle


%\tableofcontents

% sane default for proof documents
\parindent 0pt\parskip 0.5ex




% generated text of all theories
\input{session}

% optional bibliography
%\bibliographystyle{abbrv}
%\bibliography{root}

\end{document}

%%% Local Variables:
%%% mode: latex
%%% TeX-master: t
%%% End:
