+ \DeclareUnicodeCharacter{2264}{\ensuremath\leq}
+ \DeclareUnicodeCharacter{2265}{\ensuremath\geq}
+ \DeclareUnicodeCharacter{2282}{\ensuremath\subset}
+ \DeclareUnicodeCharacter{2287}{\ensuremath\supseteq}
+
+ \DeclareUnicodeCharacter{2016}{\ensuremath\Vert}
+ \DeclareUnicodeCharacter{2032}{\ensuremath\prime}
+ \DeclareUnicodeCharacter{210F}{\ensuremath\hbar}
+ \DeclareUnicodeCharacter{2111}{\ensuremath\Im}
+ \DeclareUnicodeCharacter{2113}{\ensuremath\ell}
+ \DeclareUnicodeCharacter{2118}{\ensuremath\wp}
+ \DeclareUnicodeCharacter{211C}{\ensuremath\Re}
+ \DeclareUnicodeCharacter{2127}{\ensuremath\mho}
+ \DeclareUnicodeCharacter{2135}{\ensuremath\aleph}
+ \DeclareUnicodeCharacter{2190}{\ensuremath\leftarrow}
+ \DeclareUnicodeCharacter{2191}{\ensuremath\uparrow}
+ \DeclareUnicodeCharacter{2193}{\ensuremath\downarrow}
+ \DeclareUnicodeCharacter{2194}{\ensuremath\leftrightarrow}
+ \DeclareUnicodeCharacter{2195}{\ensuremath\updownarrow}
+ \DeclareUnicodeCharacter{2196}{\ensuremath\nwarrow}
+ \DeclareUnicodeCharacter{2197}{\ensuremath\nearrow}
+ \DeclareUnicodeCharacter{2198}{\ensuremath\searrow}
+ \DeclareUnicodeCharacter{2199}{\ensuremath\swarrow}
+ \DeclareUnicodeCharacter{21A6}{\ensuremath\mapsto}
+ \DeclareUnicodeCharacter{21A9}{\ensuremath\hookleftarrow}
+ \DeclareUnicodeCharacter{21AA}{\ensuremath\hookrightarrow}
+ \DeclareUnicodeCharacter{21BC}{\ensuremath\leftharpoonup}
+ \DeclareUnicodeCharacter{21BD}{\ensuremath\leftharpoondown}
+ \DeclareUnicodeCharacter{21BE}{\ensuremath\upharpoonright}
+ \DeclareUnicodeCharacter{21C0}{\ensuremath\rightharpoonup}
+ \DeclareUnicodeCharacter{21C1}{\ensuremath\rightharpoondown}
+ \DeclareUnicodeCharacter{21CC}{\ensuremath\rightleftharpoons}
+ \DeclareUnicodeCharacter{21D0}{\ensuremath\Leftarrow}
+ \DeclareUnicodeCharacter{21D1}{\ensuremath\Uparrow}
+ \DeclareUnicodeCharacter{21D3}{\ensuremath\Downarrow}
+ \DeclareUnicodeCharacter{21D4}{\ensuremath\Leftrightarrow}
+ \DeclareUnicodeCharacter{21D5}{\ensuremath\Updownarrow}
+ \DeclareUnicodeCharacter{21DD}{\ensuremath\leadsto}
+ \DeclareUnicodeCharacter{2201}{\ensuremath\complement}
+ \DeclareUnicodeCharacter{2202}{\ensuremath\partial}
+ \DeclareUnicodeCharacter{2205}{\ensuremath\emptyset}
+ \DeclareUnicodeCharacter{2207}{\ensuremath\nabla}
+ \DeclareUnicodeCharacter{2209}{\ensuremath\notin}
+ \DeclareUnicodeCharacter{220B}{\ensuremath\owns}
+ \DeclareUnicodeCharacter{220F}{\ensuremath\prod}
+ \DeclareUnicodeCharacter{2210}{\ensuremath\coprod}
+ \DeclareUnicodeCharacter{2211}{\ensuremath\sum}
+ \DeclareUnicodeCharacter{2213}{\ensuremath\mp}
+ \DeclareUnicodeCharacter{2218}{\ensuremath\circ}
+ \DeclareUnicodeCharacter{221A}{\ensuremath\surd}
+ \DeclareUnicodeCharacter{221D}{\ensuremath\propto}
+ \DeclareUnicodeCharacter{2220}{\ensuremath\angle}
+ \DeclareUnicodeCharacter{2223}{\ensuremath\mid}
+ \DeclareUnicodeCharacter{2228}{\ensuremath\vee}
+ \DeclareUnicodeCharacter{222A}{\ensuremath\cup}
+ \DeclareUnicodeCharacter{222B}{\ensuremath\smallint}
+ \DeclareUnicodeCharacter{222E}{\ensuremath\oint}
+ \DeclareUnicodeCharacter{223C}{\ensuremath\sim}
+ \DeclareUnicodeCharacter{2240}{\ensuremath\wr}
+ \DeclareUnicodeCharacter{2243}{\ensuremath\simeq}
+ \DeclareUnicodeCharacter{2245}{\ensuremath\cong}
+ \DeclareUnicodeCharacter{2248}{\ensuremath\approx}
+ \DeclareUnicodeCharacter{224D}{\ensuremath\asymp}
+ \DeclareUnicodeCharacter{2250}{\ensuremath\doteq}
+ \DeclareUnicodeCharacter{2260}{\ensuremath\neq}
+ \DeclareUnicodeCharacter{226A}{\ensuremath\ll}
+ \DeclareUnicodeCharacter{226B}{\ensuremath\gg}
+ \DeclareUnicodeCharacter{227A}{\ensuremath\prec}
+ \DeclareUnicodeCharacter{227B}{\ensuremath\succ}
+ \DeclareUnicodeCharacter{2283}{\ensuremath\supset}
+ \DeclareUnicodeCharacter{2286}{\ensuremath\subseteq}
+ \DeclareUnicodeCharacter{228E}{\ensuremath\uplus}
+ \DeclareUnicodeCharacter{228F}{\ensuremath\sqsubset}
+ \DeclareUnicodeCharacter{2290}{\ensuremath\sqsupset}
+ \DeclareUnicodeCharacter{2291}{\ensuremath\sqsubseteq}
+ \DeclareUnicodeCharacter{2292}{\ensuremath\sqsupseteq}
+ \DeclareUnicodeCharacter{2293}{\ensuremath\sqcap}
+ \DeclareUnicodeCharacter{2294}{\ensuremath\sqcup}
+ \DeclareUnicodeCharacter{2295}{\ensuremath\oplus}
+ \DeclareUnicodeCharacter{2296}{\ensuremath\ominus}
+ \DeclareUnicodeCharacter{2297}{\ensuremath\otimes}
+ \DeclareUnicodeCharacter{2298}{\ensuremath\oslash}
+ \DeclareUnicodeCharacter{2299}{\ensuremath\odot}
+ \DeclareUnicodeCharacter{22A2}{\ensuremath\vdash}
+ \DeclareUnicodeCharacter{22A3}{\ensuremath\dashv}
+ \DeclareUnicodeCharacter{22A4}{\ensuremath\ptextop}
+ \DeclareUnicodeCharacter{22A5}{\ensuremath\bot}
+ \DeclareUnicodeCharacter{22A8}{\ensuremath\models}
+ \DeclareUnicodeCharacter{22B4}{\ensuremath\unlhd}
+ \DeclareUnicodeCharacter{22B5}{\ensuremath\unrhd}
+ \DeclareUnicodeCharacter{22C0}{\ensuremath\bigwedge}
+ \DeclareUnicodeCharacter{22C1}{\ensuremath\bigvee}
+ \DeclareUnicodeCharacter{22C2}{\ensuremath\bigcap}
+ \DeclareUnicodeCharacter{22C3}{\ensuremath\bigcup}
+ \DeclareUnicodeCharacter{22C4}{\ensuremath\diamond}
+ \DeclareUnicodeCharacter{22C5}{\ensuremath\cdot}
+ \DeclareUnicodeCharacter{22C6}{\ensuremath\star}
+ \DeclareUnicodeCharacter{22C8}{\ensuremath\bowtie}
+ \DeclareUnicodeCharacter{2308}{\ensuremath\lceil}
+ \DeclareUnicodeCharacter{2309}{\ensuremath\rceil}
+ \DeclareUnicodeCharacter{230A}{\ensuremath\lfloor}
+ \DeclareUnicodeCharacter{230B}{\ensuremath\rfloor}
+ \DeclareUnicodeCharacter{2322}{\ensuremath\frown}
+ \DeclareUnicodeCharacter{2323}{\ensuremath\smile}
+
+ \DeclareUnicodeCharacter{25A1}{\ensuremath\Box}
+ \DeclareUnicodeCharacter{25B3}{\ensuremath\triangle}
+ \DeclareUnicodeCharacter{25B7}{\ensuremath\triangleright}
+ \DeclareUnicodeCharacter{25BD}{\ensuremath\bigtriangledown}
+ \DeclareUnicodeCharacter{25C1}{\ensuremath\triangleleft}
+ \DeclareUnicodeCharacter{25C7}{\ensuremath\Diamond}
+ \DeclareUnicodeCharacter{2660}{\ensuremath\spadesuit}
+ \DeclareUnicodeCharacter{2661}{\ensuremath\heartsuit}
+ \DeclareUnicodeCharacter{2662}{\ensuremath\diamondsuit}
+ \DeclareUnicodeCharacter{2663}{\ensuremath\clubsuit}
+ \DeclareUnicodeCharacter{266D}{\ensuremath\flat}
+ \DeclareUnicodeCharacter{266E}{\ensuremath\natural}
+ \DeclareUnicodeCharacter{266F}{\ensuremath\sharp}
+ \DeclareUnicodeCharacter{26AA}{\ensuremath\bigcirc}
+ \DeclareUnicodeCharacter{27B9}{\ensuremath\rangle}
+ \DeclareUnicodeCharacter{27C2}{\ensuremath\perp}
+ \DeclareUnicodeCharacter{27E8}{\ensuremath\langle}
+ \DeclareUnicodeCharacter{27F5}{\ensuremath\longleftarrow}
+ \DeclareUnicodeCharacter{27F6}{\ensuremath\longrightarrow}
+ \DeclareUnicodeCharacter{27F7}{\ensuremath\longleftrightarrow}
+ \DeclareUnicodeCharacter{27FC}{\ensuremath\longmapsto}
+ \DeclareUnicodeCharacter{29F5}{\ensuremath\setminus}
+ \DeclareUnicodeCharacter{2A00}{\ensuremath\bigodot}
+ \DeclareUnicodeCharacter{2A01}{\ensuremath\bigoplus}
+ \DeclareUnicodeCharacter{2A02}{\ensuremath\bigotimes}
+ \DeclareUnicodeCharacter{2A04}{\ensuremath\biguplus}
+ \DeclareUnicodeCharacter{2A06}{\ensuremath\bigsqcup}
+ \DeclareUnicodeCharacter{2A1D}{\ensuremath\Join}
+ \DeclareUnicodeCharacter{2A3F}{\ensuremath\amalg}
+ \DeclareUnicodeCharacter{2AAF}{\ensuremath\preceq}
+ \DeclareUnicodeCharacter{2AB0}{\ensuremath\succeq}
+
+ \global\mathchardef\checkmark="1370 % actually the square root sign
+ \DeclareUnicodeCharacter{2713}{\ensuremath\checkmark}