第一课。

离散数学.tex

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+\documentclass[12pt, UTF8, a4paper, fontset=none]{ctexbook}
+\usepackage{geometry}
+\usepackage{amsmath}
+\usepackage{amsthm}
+\usepackage{amssymb}
+\usepackage{bm}
+\usepackage{graphicx}
+\usepackage{hyperref}
+\usepackage{mathrsfs}
+\usepackage[inline]{enumitem}
+
+\geometry{a4paper,scale=0.8}
+
+\defaultCJKfontfeatures{Mapping = fullwidth-stop}
+\ctexset{fontset=macnew}
+% \ctexset{fontset=windows} % On Windows
+
+\newtheorem{theorem}{定理}[section]
+\newtheorem{axiom}{公理}[section]
+\newtheorem{definition}{定义}[section]
+\newtheorem{lemma}{引理}[theorem]
+\newtheorem{corollary}{推论}[theorem]
+\newtheorem{example}{例}[section]
+\newtheorem{proposition}{命题}[theorem]
+
+% \renewcommand{\qedsymbol}{} %去掉证明结尾的方框
+
+\newcommand{\newnoun}[2]{
+    \textbf{#1}（\textit{#2}）
+}
+
+\title{{\Huge{\textbf{离散数学}}}}
+\author{}
+\date{}
+% linespread{1.5}
+
+\begin{document}
+    \maketitle
+    \newpage
+    \pagenumbering{roman}
+    \setcounter{page}{1}
+    \tableofcontents
+    \newpage
+    \setcounter{page}{1}
+    \pagenumbering{arabic}
+    \include{01LetsCount.tex}
+\end{document}