<!ENTITY aleph	"&#x2135;"> <!-- ALEF SYMBOL -->
<!ENTITY and	"&#x2227;"> <!--  -->
<!ENTITY ang90	"&#x221F;"> <!-- RIGHT ANGLE -->
<!ENTITY angsph	"&#x2222;"> <!--  -->
<!ENTITY ap	"&#x2248;"> <!--  -->
<!ENTITY becaus	"&#x2235;"> <!-- BECAUSE -->
<!ENTITY bottom	"&#x22A5;"> <!--  -->
<!ENTITY cap	"&#x2229;"> <!--  -->
<!ENTITY cong	"&#x2245;"> <!--  -->
<!ENTITY conint	"&#x222E;"> <!--  -->
<!ENTITY cup	"&#x222A;"> <!--  -->
<!ENTITY equiv	"&#x2261;"> <!--  -->
<!ENTITY exist	"&#x2203;"> <!--  -->
<!ENTITY forall	"&#x2200;"> <!--  -->
<!ENTITY fnof	"&#x0192;"> <!-- LATIN SMALL LETTER F WITH HOOK -->
<!ENTITY ge	"&#x2265;"> <!-- GREATER-THAN OR EQUAL TO -->
<!ENTITY iff	"&#x21D4;"> <!-- LEFT RIGHT DOUBLE ARROW -->
<!ENTITY infin	"&#x221E;"> <!--  -->
<!ENTITY int	"&#x222B;"> <!--  -->
<!ENTITY isin	"&#x220A;"> <!--  -->
<!ENTITY lang	"&#x3008;"> <!--  -->
<!ENTITY lArr	"&#x21D0;"> <!-- LEFTWARDS ARROW -->
<!ENTITY le	"&#x2264;"> <!--  -->
<!ENTITY minus	"&#x2212;"> <!-- MINUS SIGN -->
<!ENTITY mnplus	"&#x2213;"> <!--  -->
<!ENTITY nabla	"&#x2207;"> <!-- NABLA -->
<!ENTITY ne	"&#x2260;"> <!--  -->
<!ENTITY ni	"&#x220D;"> <!--  -->
<!ENTITY or	"&#x2228;"> <!--  -->
<!ENTITY par	"&#x2225;"> <!-- PARALLEL TO -->
<!ENTITY part	"&#x2202;"> <!--  -->
<!ENTITY permil	"&#x2030;"> <!-- PER MILLE SIGN -->
<!ENTITY perp	"&#x22A5;"> <!--  -->
<!ENTITY prime	"&#x2032;"> <!-- PRIME -->
<!ENTITY Prime	"&#x2033;"> <!-- DOUBLE PRIME -->
<!ENTITY prop	"&#x221D;"> <!--  -->
<!ENTITY radic	"&#x221A;"> <!--  -->
<!ENTITY rang	"&#x3009;"> <!--  -->
<!ENTITY rArr	"&#x21D2;"> <!-- RIGHTWARDS ARROW -->
<!ENTITY sim	"&#x223C;"> <!--  -->
<!ENTITY sime	"&#x2243;"> <!--  -->
<!ENTITY square	"&#x25A1;"> <!-- WHITE SQUARE -->
<!ENTITY sub	"&#x2282;"> <!--  -->
<!ENTITY sube	"&#x2286;"> <!--  -->
<!ENTITY sup	"&#x2283;"> <!--  -->
<!ENTITY supe	"&#x2287;"> <!--  -->
<!ENTITY there4	"&#x2234;"> <!--  -->
<!ENTITY Verbar	"&#x2016;"> <!-- DOUBLE VERTICAL LINE -->
<!ENTITY angst	"&#x212B;"> <!-- ANGSTROM SIGN -->
<!ENTITY bernou	"&#x212C;"> <!-- SCRIPT CAPITAL B -->
<!ENTITY compfn	"&#x2218;"> <!-- RING OPERATOR -->
<!ENTITY Dot	"&#x00A8;"> <!--  -->
<!ENTITY DotDot	"&#x20DC;"> <!-- COMBINING FOUR DOTS ABOVE -->
<!ENTITY hamilt	"&#x210B;"> <!-- SCRIPT CAPITAL H -->
<!ENTITY lagran	"&#x2112;"> <!-- SCRIPT CAPITAL L -->
<!ENTITY lowast	"&#x2217;"> <!-- ASTERISK OPERATOR -->
<!ENTITY notin	"&#x2209;"> <!--  -->
<!ENTITY order	"&#x2134;"> <!-- SCRIPT SMALL O -->
<!ENTITY phmmat	"&#x2133;"> <!-- SCRIPT CAPITAL M -->
<!ENTITY tdot	"&#x20DB;"> <!-- COMBINING THREE DOTS ABOVE -->
<!ENTITY tprime	"&#x2034;"> <!-- TRIPLE PRIME -->
<!ENTITY wedgeq	"&#x2259;"> <!-- ESTIMATES -->