\documentclass[12pt]{beamer}
\usetheme{jaifat}

\usepackage{hyperref}
\usepackage{setspace}
\usepackage[labelformat=empty]{caption}
\usepackage{ulem}

%% =============
%% new command

\newcommand{\frametitlecenter}[1]{
%\vskip 12mm
\hskip 3mm
\vskip 10mm
% \vskip 18pt
\begin{beamercolorbox}[wd=.8\paperwidth,ht=1.5cm,center]{frametitle}
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\newcommand{\ftc}[1]{\frame{\frametitlecenter{#1}}}%
\newcommand{\ftcc}[2]{\frame{#2\frametitlecenter{#1}}}%
\newcommand{\jref}[2]{\href{#1}{\underline{#2}}}%

% \renewcommand{\figurename}{}

%% =============
%% meta-data

\title{Implementing Untyped λ-Calculus}
\subtitle{in Haskell}

\author{slide: Jaiyalas \\ Lin Jen-Shin (godfat)}
\date{2012-05-08}

%% =============
%% document body

\begin{document}
\frame{\titlepage}

\frame{\usebeamerfont*{font DejaVu Sans}
\huge godfat.org/slide/2012-05-08-lambda-draft.pdf}

\input{part0}
\input{part1}
\input{part2}
\input{part3}
\input{part4}
\input{part5}
\input{part6}

\end{document}
