Symbol and character testing
\Gamma \Delta \Lambda \Phi \Pi \Psi \Sigma \Theta \Upsilon \Xi \Omega
\alpha \beta \gamma \delta \epsilon \zeta \eta \theta \iota \kappa \lambda \mu \nu
\xi \pi \rho \sigma \tau \upsilon \phi \chi \psi \omega \digamma
\varepsilon\; \varkappa\; \varphi\; \varpi \;\varrho \;\varsigma\; \vartheta
\aleph \beth \daleth \gimel \complement \ell \eth \hbar \hslash \mho \partial \wp \circledS \Bbbk \Finv \Game \Im \Re
\pm \mp \times \div \cdot \ast \star \dagger \ddagger \amalg \cap \cup \uplus \sqcap \sqcup \vee \wedge \oplus \ominus
\otimes \circ \bullet \diamond \lhd \rhd \unlhd \unrhd \oslash \odot \bigcirc \triangleleft
\Diamond \bigtriangleup \bigtriangledown \Box \triangleright \setminus \wr
\le \ge \neq
\sim \ll \gg
\doteq \simeq \subset
\supset \approx \asymp
\subseteq \supseteq \cong
\smile \sqsubset \sqsupset
\equiv \frown \sqsubseteq
\sqsupseteq \propto \bowtie
\in \ni \prec
\succ \vdash \dashv
\preceq \succeq \models
\perp \parallel \|
\mid
\nmid \nleq \ngeq
\nsim \ncong \nparallel
\not< \not> \not=
\not\le \not\ge \not\sim
\not\approx \not\cong \not\equiv
\not\parallel \nless \ngtr
\lneq \gneq \lnsim
\lneqq \gneqq
\gets \to
\leftarrow \Leftarrow
\rightarrow \Rightarrow
\leftrightarrow \Leftrightarrow
\mapsto \hookleftarrow
\leftharpoonup \leftharpoondown
\rightleftharpoons \longleftarrow
\Longleftarrow \longrightarrow
\Longrightarrow \longleftrightarrow
\Longleftrightarrow \longmapsto
\hookrightarrow \rightharpoonup
\rightharpoondown \leadsto
\uparrow \Uparrow
\downarrow \Downarrow
\updownarrow \Updownarrow
\nearrow \searrow
\swarrow \nwarrow