\documentclass[10pt,a4,openright,makeidx,color,twoside,multicol]{article}
\usepackage{epic,eepic}
\usepackage{aeguill} % au lieu de [T1]{fontenc}
%\usepackage[cyr]{aeguill} % si pas de fontes polonaises !
%dvips -Pcmz essai.dvi -o % m'expliquer pourquoi ps2pdf donne un meilleur pdf
\usepackage{times}
\usepackage{fancybox,psfig,array}
\usepackage[sumlimits,namelimits]{amsmath}
\usepackage{amssymb,amsfonts,amsxtra,eucal,multicol,indentfirst}
%\usepackage[T1]{fontenc}
\usepackage[latin1]{inputenc}
\usepackage[francais]{babel}
\usepackage[dvips]{graphicx}
\usepackage[dvips]{color}
%\usepackage[pdftex]{graphicx}
%\pdfcompresslevel=9
%\usepackage{psnfss} % charge les polices postscript
\voffset -0.9in
\hoffset -1in
\oddsidemargin=2.5cm
\evensidemargin=2cm
\topmargin=1.0cm
\textwidth=16.5cm
\textheight=25.0cm
\footskip=2.0cm
\pagestyle{empty}
\makeindex 
%\input format12.tex
\newcounter{exemples}[section]
\newcounter{remarques}[section]
\newtheorem{axiom}{Axiome}
\newtheorem{theorem}{Propriété}[section]
\newtheorem{lemma}[theorem]{Lemme}
\newtheorem{definition}[theorem]{Définition}
\newtheorem{example}[exemples]{Exemple}
\newtheorem{remark}[remarques]{Remarque}
\begin{document}
%\begin{multicols}{2}
\input i.t

%\end{multicols}
\end{document}