在 tex 文档中，我希望像其他所有文档一样对方程式进行编号。但方程式似乎都有自己的编号。以下是示例：在“备注 4.5”之后紧接着是“方程式 (3)”。我更希望使用“方程式 (4.6)”。
我已经尝试在所有注释、定理、命题等之前添加一个\stepcounter{thm}……但没有成功。有办法解决这个问题吗？
下面附上了我的 tex 文件的第一部分。非常感谢。
\documentclass[a4paper,11pt]{amsart}
\usepackage[utf8]{inputenc}
\usepackage[margin=2.5cm]{geometry}
\usepackage{enumerate, amsmath,amsthm,amssymb,amscd,mathrsfs,hyperref}
\usepackage{colortbl,float,longtable,xcolor,booktabs,bookmark}
\usepackage[all]{xy}
\usepackage[english]{babel}
\usepackage{graphicx,tikz}
\usetikzlibrary{trees}
\usetikzlibrary{arrows}
\newcommand{\V}[1]{\mathcal{V}\!\left({#1}\right)}
\newcommand{\gap}{\hspace{0.5em}}
\newcommand{\vgap}{\vspace{0.25em}}
\newcommand{\padding}{\rule[-1.45ex]{0pt}{0.2em}\gap}
\newcommand{\oddrow}{\rowcolor[gray]{0.95}}
\newcommand{\evnrow}{}
\newlength{\matrixheight}
\newcommand{\calculatepadding}[1]{\settoheight{\matrixheight}{\hbox{#1}}{#1}}
\theoremstyle{plain}
\newtheorem*{thmA}{Theorem A}
\newtheorem*{thmB}{Theorem B}
\newtheorem*{thmC}{Theorem C}
\newtheorem{thm}{Theorem}[section]
\newtheorem{pro}[thm]{Proposition}
\newtheorem{lem}[thm]{Lemma}
\newtheorem{cor}[thm]{Corollary}
\newtheorem{Lemma}[thm]{Lemma}
\newtheorem{Proposition}[thm]{Proposition}
\newtheorem{Corollary}[thm]{Corollary}
\newtheorem{Conjecture}[thm]{Conjecture}
\newtheorem*{thm*}{Theorem}
\newtheorem*{theoremn}{Theorem}
\newtheorem*{conjecturen}{Conjecture}
\newtheorem{Claim}[thm]{Claim}
\theoremstyle{definition}
\newtheorem{dfn}[thm]{Definition}
\newtheorem{claim}[thm]{Claim}
\newtheorem{exa}[thm]{Example}
\newtheorem{prb}[thm]{Problem}
\newtheorem{rem}[thm]{Remark}
\newtheorem{que}[thm]{Question}
\newtheorem{Notation}[thm]{Notation}
\newtheorem{Problem}[thm]{Problem}
\newtheorem{Construction}[thm]{Construction}
\newtheorem{Definition}[thm]{Definition}
\newtheorem{Remark}[thm]{Remark}
\newtheorem{Remarks}[thm]{Remarks}
\newtheorem{Question}[thm]{Question}
\newtheorem{Example}[thm]{Example}
\newtheorem{Assumption}[thm]{Assumptions}
\newtheorem{say}[thm]{}
答案1
我不太明白为什么多次定义类似的环境（claim/ Claim，lem/ Lemma），所以这里只是代码的简化版本：
\documentclass{amsart}
\usepackage{amsthm}
\newtheorem{thm}{Theorem}[section]
\newtheorem{pro}[thm]{Proposition}
\newtheorem{lem}[thm]{Lemma}
\makeatletter
\let\c@equation\c@thm
\makeatother
\numberwithin{equation}{section}
\begin{document}
\section{Foo}
Normal normal normal normal normal normal
\begin{thm}
Theorem theorem theorem theorem theorem
\begin{equation}
a=b
\end{equation}
Theorem theorem theorem theorem theorem theorem
\end{thm}
Normal normal normal normal normal normal
\begin{pro}
Proposition proposition proposition proposition
\end{pro}
Normal normal normal normal normal normal
\begin{equation}
a=b
\end{equation}
Normal normal normal normal normal normal
\begin{lem}
Lemma lemma lemma lemma lemma lemma lemma
\end{lem}
\section{Bar}
Normal normal normal normal normal normal
\begin{thm}
Theorem theorem theorem theorem theorem theorem
\begin{equation}
a=b
\end{equation}
\end{thm}
\end{document}
