$\infty$ $\varnothing$ $\forall$ $\exists$ $\nexists$ $\in$ $\ni$ $\notin$
$\subset$ $\supset$ $\Subset$ $\Supset$ $\sqsubset$ $\sqsupset$ $\sqsubseteq$ $\sqsupseteq$
$\subseteq$ $\supseteq$ $\nsubseteq$ $\nsupseteq$ $\subsetneq$ $\supsetneq$ $\varsubsetneq$ $\varsupsetneq$
$\subseteqq$ $\supseteqq$ $\nsubseteqq$ $\nsupseteqq$ $\subsetneqq$ $\supsetneqq$ $\varsubsetneqq$ $\varsupsetneqq$
$\triangleleft $ $\triangleright$ $\vartriangleleft$ $\vartriangleright$ $\blacktriangleleft$ $\blacktriangleright$ $\ntriangleleft$ $\ntriangleright$
$\trianglelefteq$ $\trianglerighteq$ $\ntrianglelefteq$ $\ntrianglerighteq$ $\bowtie$ $\Join$ $\therefore$ $\because$