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\usepackage[top=2cm, bottom=1cm, left=2cm, right=2cm, includefoot]{geometry}
\usepackage[dvipdfmx]{graphicx}
\usepackage[dvipdfmx, hidelinks]{hyperref}
\usepackage[numbers, sort]{natbib}
\usepackage{url}
\usepackage[at]{easylist}
\usepackage{listliketab}
\usepackage[english, japanese]{babel}
\usepackage{amsthm}
\newtheoremstyle{mystyle}{}{}{\normalfont}{}{\bfseries}{}{\newline}{}
\theoremstyle{mystyle}
\newtheorem{thm}{定理}[section]
\newtheorem*{thm*}{定理}
\newtheorem{prf}{証明}[section]
\newtheorem*{prf*}{証明}
\usepackage{bm}
\makeatletter
\renewcommand{\theequation}
{\arabic{section}.\arabic{equation}}
\@addtoreset{equation}{section}
\makeatother¥begin{figure} % 「図1」になっている
¥caption{figure 1}
¥end{figure}