Simplemente armé esto robando códigos de programas y se me ocurrió que podía ser de utilidad al foro, agradecería que lo muevan a la parte en que están las demás cosas de Tex =)
Espero que sea de ayuda!
Símbolos de Relación:
\pm
\cap
\diamond
\oplus
\mp
\cup
\bigtriangleup
\ominus
\times
\uplus
\bigtriangledown
\otimes
\div
\sqcap
\triangleleft
\oslash
\ast
\sqcup
\triangleright
\odot
\star
\vee
\bigcirc
\circ
\wedge
\dagger
\bullet
\setminus
\ddagger
\cdot
\wr
\amalg
\leq
\geq
\equiv
\models
\prec
\succ
\sim
\perp
\preceq
\succeq
\simeq
\mid
\ll
\gg
\asymp
\parallel
\subset
\supset
\approx
\bowtie
\subseteq
\supseteq
\cong
\neq
\smile
\sqsubseteq
\sqsupseteq
\doteq
\frown
\in
\ni
\propto
\vdash
\dashv
\<
\>
\sum
\bigcap
\bigodot
\prod
\bigcup
\bigotimes
\coprod
\bigsqcup
\bigoplus
\int
\bigvee
\biguplus
\oint
\bigwedge
\leqslant
\geqslant
\lhd
\rhd
\unlhd
\unrhd
\Join
\sqsubset
\sqsupset
\dotplus
\smallsetminus
\Cap
\Cup
\barwedge
\veebar
\doublebarwedge
\boxminus
\boxtimes
\boxdot
\boxplus
\divideontimes
\ltimes
\rtimes
\leftthreetimes
\rightthreetimes
\curlywedge
\curlyvee
\circleddash
\circledast
\circledcirc
\centerdot
\intercal
\leqq
\eqslantless
\lesssim
\lessapprox
\approxeq
\lessdot
\lll
\lessgtr
\lesseqgtr
\lesseqqgtr
\doteqdot
\risingdotseq
\fallingdotseq
\backsim
\backsimeq
\subseteqq
\Subset
\preccurlyeq
\curlyeqprec
\precsim
\precapprox
\vartriangleleft
\trianglelefteq
\vDash
\Vvdash
\smallsmile
\smallfrown
\bumpeq
\Bumpeq
\geqq
\eqslantgtr
\gtrsim
\gtrapprox
\gtrdot
\ggg
\gtrless
\gtreqless
\gtreqqless
\eqcirc
\circeq
\triangleq
\thicksim
\thickapprox
\supseteqq
\Supset
\succcurlyeq
\curlyeqsucc
\succsim
\succapprox
\vartriangleright
\trianglerighteq
\Vdash
\shortmid
\shortparallel
\between
\pitchfork
\varpropto
\blacktriangleleft
\therefore
\backepsilon
\blacktriangleright
\because
\nless
\nleq
\nleqslant
\nleqq
\lneq
\lneqq
\lvertneqq
\lnsim
\lnapprox
\nprec
\npreceq
\precnsim
\precnapprox
\nsim
\nshortmid
\nmid
\nvdash
\nvDash
\ntriangleleft
\ntrianglelefteq
\nsubseteq
\subsetneq
\varsubsetneq
\subsetneqq
\varsubsetneqq
\ngtr
\ngeq
\ngeqslant
\ngeqq
\gneq
\gneqq
\gvertneqq
\gnsim
\gnapprox
\nsucc
\nsucceq
\succnsim
\succnapprox
\ncong
\nshortparallel
\nparallel
\nVDash
\ntriangleright
\ntrianglerighteq
\nsupseteq
\nsupseteqq
\supsetneq
\varsupsetneq
\supsetneqq
\varsupsetneqq
Símbolos de Flechas:
\leftarrow
\longleftarrow
\uparrow
\Leftarrow
\Longleftarrow
\Uparrow
\rightarrow
\longrightarrow
\downarrow \Rightarrow
\Longrightarrow
\Downarrow
\leftrightarrow
\longleftrightarrow
\updownarrow
\Leftrightarrow
\Longleftrightarrow
\Updownarrow
\mapsto
\longmapsto
\nearrow
\hookleftarrow
\hookrightarrow
\searrow
\leftharpoonup
\rightharpoonup
\swarrow
\leftharpoondown
\rightharpoondown
\nwarrow
\rightleftharpoons
\dashrightarrow
\dashleftarrow
\leftleftarrows
\leftrightarrows
\Lleftarrow
\twoheadleftarrow
\leftarrowtail
\leftrightharpoons
\curvearrowleft
\circlearrowleft
\Lsh
\upuparrows
\upharpoonleft
\downharpoonleft
\multimap
\leftrightsquigarrow
\rightrightarrows
\rightleftarrows
\twoheadrightarrow
\rightarrowtail
\curvearrowright
\circlearrowright
\Rsh
\downdownarrows
\upharpoonright
\downharpoonright
\rightsquigarrow
\nleftarrow
\nrightarrow
\nLeftarrow
\nRightarrow
\nleftrightarrow
\nLeftrightarrow
\leadsto
Misceláneo:
\ldots
\cdots
\vdots
\ddots
\aleph
\prime
\forall
\infty
\hbar
\emptyset
\exists
\imath
\nabla
\neg
\jmath
\surd
\flat
\triangle
\ell
\top
\natural
\clubsuit
\wp
\bot
\sharp
\diamondsuit
\Re
\|
\backslash
\heartsuit
\Im
\angle
\partial
\spadesuit
\hslash
\vartriangle
\triangledown
\square
\lozenge
\circledS
\measuredangle
\nexists
\mho
\Finv
\Game
\Bbbk
\backprime
\varnothing
\blacktriangle
\blacktriangledown
\blacksquare
\blacklozenge
\bigstar
\sphericalangle
\complement
\eth
\diagup
\diagdown
Delimitadores:
\vert
\Vert
\lbrace
\rbrace
\lfloor
\rfloor
\lceil
\rceil
\langle
\rangle
\overbrace{011235813}
\underbrace{011235813}
\overline{011235813}
\underline{011235813}
\overleftarrow{011235813}
\overrightarrow{011235813}
\widehat{011235813}
\ulcorner
\urcorner
\llcorner
\lrcorner
Letras Griegas:
\alpha
\beta
\gamma
\delta
\epsilon
\varepsilon
\zeta
\eta
\theta
\vartheta
\iota
\kappa
\lambda
\mu
\nu
\xi
\pi
\varpi
\rho
\varrho
\sigma
\varsigma
\tau
\upsilon
\phi
\varphi
\chi
\psi
\omega
\Gamma
\Delta
\Theta
\Lambda
\Xi
\Pi
\Sigma
\Upsilon
\Phi
\Psi
\Omega