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+\documentclass[8pt,twocolumn,a4paper]{extarticle}
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+\usepackage[margin=2cm]{geometry}
+\usepackage[pdfborder={0 0 0},bookmarks=false,ps2pdf]{hyperref}
\usepackage[american]{babel}
\usepackage{matex}
+\usepackage{legacy_1}
+\usepackage{ground_1}
+\usepackage{basic_1}
\newcounter{node}
\renewcommand*\ObjIncNode{\stepcounter{node}}
-\renewcommand*\ObjNode{\arabic{node} }
+\renewcommand*\ObjNode{\arabic{node}}
+
+\title{The Core Theory of the Formal System $\lambda\delta\hbox{-}1$:
+Definitions and Statements}
+
+\author{Ferruccio Guidi}
\begin{document}
+\maketitle
+
\input{objs}
\end{document}