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Greek letters

\alpha A \nu N
\beta B \xi\Xi
\gamma \Gamma o O
\delta \Delta \pi \Pi
\epsilon \varepsilon E \rho\varrho P
\zeta Z \sigma \Sigma
\eta H \tau T
\theta \vartheta \Theta \upsilon \Upsilon
\iota I \phi \varphi \Phi
\kappa K \chi X
\lambda \Lambda \psi \Psi
\mu M \omega \Omega

Arrows

\leftarrow \Leftarrow
\rightarrow \Rightarrow
\leftrightarrow \rightleftharpoons
\uparrow \downarrow
\Uparrow \Downarrow
\Leftrightarrow \Updownarrow
\mapsto \longmapsto
\nearrow \searrow
\swarrow \nwarrow
\leftharpoonup \rightharpoonup
\leftharpoondown \rightharpoondown

Miscellaneous symbols

\infty \forall
\Re \Im
\nabla \exists
\partial \nexists
\emptyset \varnothing
\wp \complement
\neg \cdots
\square \surd
\blacksquare \triangle

Binary Operation/Relation Symbols

\times \times
\div \cap
\cup \neq
\leq \geq
\in \perp
\notin \subset
\simeq \approx
\wedge \vee
\oplus \otimes
\Box \boxtimes
\equiv \cong

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