获取 springer `\subset` 类数学运算符

Question

关于获取老式模板有很多问题（甚至有些是我提出的）。一般来说，答案解决了正文字体和一些符号的问题。但其他的，如\subset、\cup、\in等，仍然保持不变。

我希望得到像 Springer 书籍中的这些符号。我在这里发布了一张我所说的照片（图片取自富尔顿·哈里斯)：

附录

此代码

% RECOMMENDED %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\documentclass[graybox,envcountchap,sectrefs]{svmono}

\usepackage{mathptmx}
\usepackage{helvet}
\usepackage{courier}
   

\usepackage{multicol}        % used for the two-column index
\usepackage[bottom]{footmisc}% places footnotes at page bottom

\usepackage{amsmath,amssymb}
\usepackage{lipsum}

\makeindex             % used for the subject index
                   % please use the style svind.ist with
                   % your makeindex program

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{document}

\author{Author name(s)}
\title{Book title}
\subtitle{-- Monograph --}

\frontmatter%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%\tableofcontents

\include{acronym}

\mainmatter%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\chapter{One}

\section{one}

\lipsum[1]

\begin{equation}
x\in X \quad y\succ x \qquad Q(y)z \subset \cap G = \varphi(\alpha)\beta \Gamma
\end{equation}
\lipsum[2-20]

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\end{document}

是 Springer 共享的 svmono 模板。它看起来像这样：

我觉得还是有区别的，不是吗？

Answer 1

mathptmx 非常老旧，使用当时可用的字符，现在不太推荐使用，其他时候克隆版本更接近，例如 newtxmath

\documentclass{article}


\usepackage{newtxmath,newtxtext}


\begin{document}

$A \cap B \subset C $

\end{document}