1 | <!-- Mathematical, Greek and Symbolic characters for HTML -->
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2 |
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3 | <!-- Character entity set. Typical invocation:
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4 | <!ENTITY % HTMLsymbol PUBLIC
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5 | "-//W3C//ENTITIES Symbols for XHTML//EN"
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6 | "http://www.w3.org/TR/xhtml1/DTD/xhtml-symbol.ent">
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7 | %HTMLsymbol;
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8 | -->
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9 |
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10 | <!-- Portions (C) International Organization for Standardization 1986:
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11 | Permission to copy in any form is granted for use with
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12 | conforming SGML systems and applications as defined in
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13 | ISO 8879, provided this notice is included in all copies.
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14 | -->
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15 |
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16 | <!-- Relevant ISO entity set is given unless names are newly introduced.
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17 | New names (i.e., not in ISO 8879 list) do not clash with any
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18 | existing ISO 8879 entity names. ISO 10646 character numbers
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19 | are given for each character, in hex. values are decimal
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20 | conversions of the ISO 10646 values and refer to the document
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21 | character set. Names are Unicode names.
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22 | -->
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23 |
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24 | <!-- Latin Extended-B -->
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25 | <!ENTITY fnof "ƒ"> <!-- latin small f with hook = function
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26 | = florin, U+0192 ISOtech -->
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27 |
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28 | <!-- Greek -->
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29 | <!ENTITY Alpha "Α"> <!-- greek capital letter alpha, U+0391 -->
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30 | <!ENTITY Beta "Β"> <!-- greek capital letter beta, U+0392 -->
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31 | <!ENTITY Gamma "Γ"> <!-- greek capital letter gamma,
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32 | U+0393 ISOgrk3 -->
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33 | <!ENTITY Delta "Δ"> <!-- greek capital letter delta,
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34 | U+0394 ISOgrk3 -->
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35 | <!ENTITY Epsilon "Ε"> <!-- greek capital letter epsilon, U+0395 -->
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36 | <!ENTITY Zeta "Ζ"> <!-- greek capital letter zeta, U+0396 -->
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37 | <!ENTITY Eta "Η"> <!-- greek capital letter eta, U+0397 -->
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38 | <!ENTITY Theta "Θ"> <!-- greek capital letter theta,
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39 | U+0398 ISOgrk3 -->
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40 | <!ENTITY Iota "Ι"> <!-- greek capital letter iota, U+0399 -->
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41 | <!ENTITY Kappa "Κ"> <!-- greek capital letter kappa, U+039A -->
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42 | <!ENTITY Lambda "Λ"> <!-- greek capital letter lambda,
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43 | U+039B ISOgrk3 -->
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44 | <!ENTITY Mu "Μ"> <!-- greek capital letter mu, U+039C -->
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45 | <!ENTITY Nu "Ν"> <!-- greek capital letter nu, U+039D -->
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46 | <!ENTITY Xi "Ξ"> <!-- greek capital letter xi, U+039E ISOgrk3 -->
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47 | <!ENTITY Omicron "Ο"> <!-- greek capital letter omicron, U+039F -->
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48 | <!ENTITY Pi "Π"> <!-- greek capital letter pi, U+03A0 ISOgrk3 -->
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49 | <!ENTITY Rho "Ρ"> <!-- greek capital letter rho, U+03A1 -->
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50 | <!-- there is no Sigmaf, and no U+03A2 character either -->
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51 | <!ENTITY Sigma "Σ"> <!-- greek capital letter sigma,
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52 | U+03A3 ISOgrk3 -->
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53 | <!ENTITY Tau "Τ"> <!-- greek capital letter tau, U+03A4 -->
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54 | <!ENTITY Upsilon "Υ"> <!-- greek capital letter upsilon,
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55 | U+03A5 ISOgrk3 -->
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56 | <!ENTITY Phi "Φ"> <!-- greek capital letter phi,
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57 | U+03A6 ISOgrk3 -->
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58 | <!ENTITY Chi "Χ"> <!-- greek capital letter chi, U+03A7 -->
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59 | <!ENTITY Psi "Ψ"> <!-- greek capital letter psi,
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60 | U+03A8 ISOgrk3 -->
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61 | <!ENTITY Omega "Ω"> <!-- greek capital letter omega,
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62 | U+03A9 ISOgrk3 -->
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63 |
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64 | <!ENTITY alpha "α"> <!-- greek small letter alpha,
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65 | U+03B1 ISOgrk3 -->
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66 | <!ENTITY beta "β"> <!-- greek small letter beta, U+03B2 ISOgrk3 -->
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67 | <!ENTITY gamma "γ"> <!-- greek small letter gamma,
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68 | U+03B3 ISOgrk3 -->
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69 | <!ENTITY delta "δ"> <!-- greek small letter delta,
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70 | U+03B4 ISOgrk3 -->
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71 | <!ENTITY epsilon "ε"> <!-- greek small letter epsilon,
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72 | U+03B5 ISOgrk3 -->
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73 | <!ENTITY zeta "ζ"> <!-- greek small letter zeta, U+03B6 ISOgrk3 -->
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74 | <!ENTITY eta "η"> <!-- greek small letter eta, U+03B7 ISOgrk3 -->
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75 | <!ENTITY theta "θ"> <!-- greek small letter theta,
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76 | U+03B8 ISOgrk3 -->
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77 | <!ENTITY iota "ι"> <!-- greek small letter iota, U+03B9 ISOgrk3 -->
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78 | <!ENTITY kappa "κ"> <!-- greek small letter kappa,
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79 | U+03BA ISOgrk3 -->
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80 | <!ENTITY lambda "λ"> <!-- greek small letter lambda,
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81 | U+03BB ISOgrk3 -->
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82 | <!ENTITY mu "μ"> <!-- greek small letter mu, U+03BC ISOgrk3 -->
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83 | <!ENTITY nu "ν"> <!-- greek small letter nu, U+03BD ISOgrk3 -->
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84 | <!ENTITY xi "ξ"> <!-- greek small letter xi, U+03BE ISOgrk3 -->
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85 | <!ENTITY omicron "ο"> <!-- greek small letter omicron, U+03BF NEW -->
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86 | <!ENTITY pi "π"> <!-- greek small letter pi, U+03C0 ISOgrk3 -->
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87 | <!ENTITY rho "ρ"> <!-- greek small letter rho, U+03C1 ISOgrk3 -->
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88 | <!ENTITY sigmaf "ς"> <!-- greek small letter final sigma,
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89 | U+03C2 ISOgrk3 -->
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90 | <!ENTITY sigma "σ"> <!-- greek small letter sigma,
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91 | U+03C3 ISOgrk3 -->
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92 | <!ENTITY tau "τ"> <!-- greek small letter tau, U+03C4 ISOgrk3 -->
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93 | <!ENTITY upsilon "υ"> <!-- greek small letter upsilon,
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94 | U+03C5 ISOgrk3 -->
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95 | <!ENTITY phi "φ"> <!-- greek small letter phi, U+03C6 ISOgrk3 -->
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96 | <!ENTITY chi "χ"> <!-- greek small letter chi, U+03C7 ISOgrk3 -->
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97 | <!ENTITY psi "ψ"> <!-- greek small letter psi, U+03C8 ISOgrk3 -->
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98 | <!ENTITY omega "ω"> <!-- greek small letter omega,
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99 | U+03C9 ISOgrk3 -->
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100 | <!ENTITY thetasym "ϑ"> <!-- greek small letter theta symbol,
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101 | U+03D1 NEW -->
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102 | <!ENTITY upsih "ϒ"> <!-- greek upsilon with hook symbol,
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103 | U+03D2 NEW -->
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104 | <!ENTITY piv "ϖ"> <!-- greek pi symbol, U+03D6 ISOgrk3 -->
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105 |
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106 | <!-- General Punctuation -->
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107 | <!ENTITY bull "•"> <!-- bullet = black small circle,
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108 | U+2022 ISOpub -->
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109 | <!-- bullet is NOT the same as bullet operator, U+2219 -->
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110 | <!ENTITY hellip "…"> <!-- horizontal ellipsis = three dot leader,
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111 | U+2026 ISOpub -->
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112 | <!ENTITY prime "′"> <!-- prime = minutes = feet, U+2032 ISOtech -->
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113 | <!ENTITY Prime "″"> <!-- double prime = seconds = inches,
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114 | U+2033 ISOtech -->
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115 | <!ENTITY oline "‾"> <!-- overline = spacing overscore,
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116 | U+203E NEW -->
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117 | <!ENTITY frasl "⁄"> <!-- fraction slash, U+2044 NEW -->
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118 |
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119 | <!-- Letterlike Symbols -->
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120 | <!ENTITY weierp "℘"> <!-- script capital P = power set
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121 | = Weierstrass p, U+2118 ISOamso -->
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122 | <!ENTITY image "ℑ"> <!-- blackletter capital I = imaginary part,
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123 | U+2111 ISOamso -->
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124 | <!ENTITY real "ℜ"> <!-- blackletter capital R = real part symbol,
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125 | U+211C ISOamso -->
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126 | <!ENTITY trade "™"> <!-- trade mark sign, U+2122 ISOnum -->
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127 | <!ENTITY alefsym "ℵ"> <!-- alef symbol = first transfinite cardinal,
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128 | U+2135 NEW -->
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129 | <!-- alef symbol is NOT the same as hebrew letter alef,
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130 | U+05D0 although the same glyph could be used to depict both characters -->
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131 |
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132 | <!-- Arrows -->
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133 | <!ENTITY larr "←"> <!-- leftwards arrow, U+2190 ISOnum -->
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134 | <!ENTITY uarr "↑"> <!-- upwards arrow, U+2191 ISOnum-->
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135 | <!ENTITY rarr "→"> <!-- rightwards arrow, U+2192 ISOnum -->
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136 | <!ENTITY darr "↓"> <!-- downwards arrow, U+2193 ISOnum -->
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137 | <!ENTITY harr "↔"> <!-- left right arrow, U+2194 ISOamsa -->
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138 | <!ENTITY crarr "↵"> <!-- downwards arrow with corner leftwards
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139 | = carriage return, U+21B5 NEW -->
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140 | <!ENTITY lArr "⇐"> <!-- leftwards double arrow, U+21D0 ISOtech -->
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141 | <!-- Unicode does not say that lArr is the same as the 'is implied by' arrow
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142 | but also does not have any other character for that function. So ? lArr can
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143 | be used for 'is implied by' as ISOtech suggests -->
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144 | <!ENTITY uArr "⇑"> <!-- upwards double arrow, U+21D1 ISOamsa -->
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145 | <!ENTITY rArr "⇒"> <!-- rightwards double arrow,
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146 | U+21D2 ISOtech -->
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147 | <!-- Unicode does not say this is the 'implies' character but does not have
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148 | another character with this function so ?
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149 | rArr can be used for 'implies' as ISOtech suggests -->
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150 | <!ENTITY dArr "⇓"> <!-- downwards double arrow, U+21D3 ISOamsa -->
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151 | <!ENTITY hArr "⇔"> <!-- left right double arrow,
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152 | U+21D4 ISOamsa -->
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153 |
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154 | <!-- Mathematical Operators -->
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155 | <!ENTITY forall "∀"> <!-- for all, U+2200 ISOtech -->
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156 | <!ENTITY part "∂"> <!-- partial differential, U+2202 ISOtech -->
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157 | <!ENTITY exist "∃"> <!-- there exists, U+2203 ISOtech -->
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158 | <!ENTITY empty "∅"> <!-- empty set = null set = diameter,
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159 | U+2205 ISOamso -->
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160 | <!ENTITY nabla "∇"> <!-- nabla = backward difference,
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161 | U+2207 ISOtech -->
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162 | <!ENTITY isin "∈"> <!-- element of, U+2208 ISOtech -->
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163 | <!ENTITY notin "∉"> <!-- not an element of, U+2209 ISOtech -->
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164 | <!ENTITY ni "∋"> <!-- contains as member, U+220B ISOtech -->
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165 | <!-- should there be a more memorable name than 'ni'? -->
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166 | <!ENTITY prod "∏"> <!-- n-ary product = product sign,
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167 | U+220F ISOamsb -->
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168 | <!-- prod is NOT the same character as U+03A0 'greek capital letter pi' though
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169 | the same glyph might be used for both -->
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170 | <!ENTITY sum "∑"> <!-- n-ary sumation, U+2211 ISOamsb -->
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171 | <!-- sum is NOT the same character as U+03A3 'greek capital letter sigma'
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172 | though the same glyph might be used for both -->
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173 | <!ENTITY minus "−"> <!-- minus sign, U+2212 ISOtech -->
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174 | <!ENTITY lowast "∗"> <!-- asterisk operator, U+2217 ISOtech -->
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175 | <!ENTITY radic "√"> <!-- square root = radical sign,
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176 | U+221A ISOtech -->
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177 | <!ENTITY prop "∝"> <!-- proportional to, U+221D ISOtech -->
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178 | <!ENTITY infin "∞"> <!-- infinity, U+221E ISOtech -->
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179 | <!ENTITY ang "∠"> <!-- angle, U+2220 ISOamso -->
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180 | <!ENTITY and "∧"> <!-- logical and = wedge, U+2227 ISOtech -->
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181 | <!ENTITY or "∨"> <!-- logical or = vee, U+2228 ISOtech -->
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182 | <!ENTITY cap "∩"> <!-- intersection = cap, U+2229 ISOtech -->
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183 | <!ENTITY cup "∪"> <!-- union = cup, U+222A ISOtech -->
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184 | <!ENTITY int "∫"> <!-- integral, U+222B ISOtech -->
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185 | <!ENTITY there4 "∴"> <!-- therefore, U+2234 ISOtech -->
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186 | <!ENTITY sim "∼"> <!-- tilde operator = varies with = similar to,
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187 | U+223C ISOtech -->
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188 | <!-- tilde operator is NOT the same character as the tilde, U+007E,
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189 | although the same glyph might be used to represent both -->
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190 | <!ENTITY cong "≅"> <!-- approximately equal to, U+2245 ISOtech -->
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191 | <!ENTITY asymp "≈"> <!-- almost equal to = asymptotic to,
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192 | U+2248 ISOamsr -->
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193 | <!ENTITY ne "≠"> <!-- not equal to, U+2260 ISOtech -->
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194 | <!ENTITY equiv "≡"> <!-- identical to, U+2261 ISOtech -->
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195 | <!ENTITY le "≤"> <!-- less-than or equal to, U+2264 ISOtech -->
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196 | <!ENTITY ge "≥"> <!-- greater-than or equal to,
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197 | U+2265 ISOtech -->
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198 | <!ENTITY sub "⊂"> <!-- subset of, U+2282 ISOtech -->
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199 | <!ENTITY sup "⊃"> <!-- superset of, U+2283 ISOtech -->
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200 | <!-- note that nsup, 'not a superset of, U+2283' is not covered by the Symbol
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201 | font encoding and is not included. Should it be, for symmetry?
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202 | It is in ISOamsn -->
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203 | <!ENTITY nsub "⊄"> <!-- not a subset of, U+2284 ISOamsn -->
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204 | <!ENTITY sube "⊆"> <!-- subset of or equal to, U+2286 ISOtech -->
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205 | <!ENTITY supe "⊇"> <!-- superset of or equal to,
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206 | U+2287 ISOtech -->
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207 | <!ENTITY oplus "⊕"> <!-- circled plus = direct sum,
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208 | U+2295 ISOamsb -->
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209 | <!ENTITY otimes "⊗"> <!-- circled times = vector product,
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210 | U+2297 ISOamsb -->
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211 | <!ENTITY perp "⊥"> <!-- up tack = orthogonal to = perpendicular,
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212 | U+22A5 ISOtech -->
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213 | <!ENTITY sdot "⋅"> <!-- dot operator, U+22C5 ISOamsb -->
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214 | <!-- dot operator is NOT the same character as U+00B7 middle dot -->
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215 |
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216 | <!-- Miscellaneous Technical -->
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217 | <!ENTITY lceil "⌈"> <!-- left ceiling = apl upstile,
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218 | U+2308 ISOamsc -->
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219 | <!ENTITY rceil "⌉"> <!-- right ceiling, U+2309 ISOamsc -->
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220 | <!ENTITY lfloor "⌊"> <!-- left floor = apl downstile,
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221 | U+230A ISOamsc -->
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222 | <!ENTITY rfloor "⌋"> <!-- right floor, U+230B ISOamsc -->
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223 | <!ENTITY lang "〈"> <!-- left-pointing angle bracket = bra,
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224 | U+2329 ISOtech -->
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225 | <!-- lang is NOT the same character as U+003C 'less than'
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226 | or U+2039 'single left-pointing angle quotation mark' -->
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227 | <!ENTITY rang "〉"> <!-- right-pointing angle bracket = ket,
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228 | U+232A ISOtech -->
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229 | <!-- rang is NOT the same character as U+003E 'greater than'
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230 | or U+203A 'single right-pointing angle quotation mark' -->
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231 |
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232 | <!-- Geometric Shapes -->
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233 | <!ENTITY loz "◊"> <!-- lozenge, U+25CA ISOpub -->
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234 |
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235 | <!-- Miscellaneous Symbols -->
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236 | <!ENTITY spades "♠"> <!-- black spade suit, U+2660 ISOpub -->
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237 | <!-- black here seems to mean filled as opposed to hollow -->
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238 | <!ENTITY clubs "♣"> <!-- black club suit = shamrock,
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239 | U+2663 ISOpub -->
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240 | <!ENTITY hearts "♥"> <!-- black heart suit = valentine,
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241 | U+2665 ISOpub -->
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242 | <!ENTITY diams "♦"> <!-- black diamond suit, U+2666 ISOpub -->
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