Superset and Proper Superset are two different symbols. Many of you use the Proper Superset as a Superset symbol, which is a wrong approach.
The default \supseteq command is used to implement this symbol in the document.
\documentclass{article}
\begin{document}
\[ A \supseteq B \]
\[ S_1 \supseteq S_2 \]
\[ X_1 \supseteq X_2 \]
\end{document}Output :
Proper Superset symbol
The Proper Superset symbol looks like ⊃, for which the \supset command is used.
\documentclass{article}
\begin{document}
\[ A \supset B \]
\[ S_1 \supset S_2 \]
\[ X \supset Y \]
\end{document}Output :
Superset with different types of symbols in LaTeX
Different types of symbols are used with this symbol. Such as not equal, subset, equal, etc.
\documentclass{article}
\usepackage{stix}
\begin{document}
\[ \supseteqq \; \supsetneq \; \supsetneqq \]
\[ \nsupset \; \nsupseteq \; \nsupseteqq \]
\[ \sqsupset \; \sqsupseteq \; \sqsupsetneq \]
\[ \supdsub \; \supedot \; \suphsol \]
\[ \suphsub \; \suplarr \; \supmult \]
\[ \Supset \; \supsetapprox \; \supsetcirc \]
\[ \supsetdot \; \supsetplus \; \supsim \]
\[ \supsub \; \supsup \; \varsupsetneqq \]
\end{document>Output :
