\documentclass[a4paper]{article} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \usepackage{amssymb} \usepackage{amsmath} \usepackage[T2A]{fontenc} %\usepackage[KOI8-R]{fontenc} %\usepackage[T1]{fontenc} \usepackage[english,russian]{babel} \usepackage{sw2rus} %\usepackage[cp866]{inputenc} %\usepackage[cp1251]{inputenc} \makeatletter \renewcommand{\@biblabel}[1]{#1.\hfill} \makeatother %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %TCIDATA{CSTFile=40 LaTeX article.cst} \newenvironment{proof}[1][Proof]{\noindent\textbf{#1.} }{\ \rule{0.5em}{0.5em}} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \newtheorem{theorem}{\U{422}\U{435}\U{43e}\U{440}\U{435}\U{43c}\U{430}}% % Теорема \newtheorem{lemma}{\U{41b}\U{435}\U{43c}\U{43c}\U{430}}% % Лемма \newtheorem{corollary}{\U{421}\U{43b}\U{435}% \U{434}\U{441}\U{442}\U{432}\U{438}\U{435}}% % Следствие \newtheorem{definition}{\U{41e}\U{43f}\U{440}% \U{435}\U{434}\U{435}\U{43b}\U{435}\U{43d}\U{438}\U{435}}% % Определение \newtheorem{proposition}{\U{41f}\U{440}\U{435}% \U{434}\U{43b}\U{43e}\U{436}\U{435}\U{43d}\U{438}\U{435}}% %Предложение \newtheorem{remark}{\U{417}\U{430}\U{43c}% \U{435}\U{447}\U{430}\U{43d}\U{438}\U{435}}% %Замечание \begin{document} \end{document}