<!-- iso-tech.ent (initially distributed with DocBook XML DTD V4.1.1beta1) -->
<!-- Derived from the corresponding ISO 8879 standard entity set
and the Unicode character mappings provided by Sebastian Rahtz.
With additional derivations from
ftp://ftp.unicode.org/Public/MAPPINGS/VENDORS/MISC/SGML.TXT -->
<!ENTITY aleph "ℵ"> <!-- ALEF SYMBOL -->
<!ENTITY and "∧"> <!-- -->
<!ENTITY ang90 "∟"> <!-- RIGHT ANGLE -->
<!ENTITY angsph "∢"> <!-- -->
<!ENTITY ap "≈"> <!-- -->
<!ENTITY becaus "∵"> <!-- BECAUSE -->
<!ENTITY bottom "⊥"> <!-- -->
<!ENTITY cap "∩"> <!-- -->
<!ENTITY cong "≅"> <!-- -->
<!ENTITY conint "∮"> <!-- -->
<!ENTITY cup "∪"> <!-- -->
<!ENTITY equiv "≡"> <!-- -->
<!ENTITY exist "∃"> <!-- -->
<!ENTITY forall "∀"> <!-- -->
<!ENTITY fnof "ƒ"> <!-- LATIN SMALL LETTER F WITH HOOK -->
<!ENTITY ge "≥"> <!-- GREATER-THAN OR EQUAL TO -->
<!ENTITY iff "⇔"> <!-- LEFT RIGHT DOUBLE ARROW -->
<!ENTITY infin "∞"> <!-- -->
<!ENTITY int "∫"> <!-- -->
<!ENTITY isin "∊"> <!-- -->
<!ENTITY lang "〈"> <!-- -->
<!ENTITY lArr "⇐"> <!-- LEFTWARDS ARROW -->
<!ENTITY le "≤"> <!-- -->
<!ENTITY minus "−"> <!-- MINUS SIGN -->
<!ENTITY mnplus "∓"> <!-- -->
<!ENTITY nabla "∇"> <!-- NABLA -->
<!ENTITY ne "≠"> <!-- -->
<!ENTITY ni "∍"> <!-- -->
<!ENTITY or "∨"> <!-- -->
<!ENTITY par "∥"> <!-- PARALLEL TO -->
<!ENTITY part "∂"> <!-- -->
<!ENTITY permil "‰"> <!-- PER MILLE SIGN -->
<!ENTITY perp "⊥"> <!-- -->
<!ENTITY prime "′"> <!-- PRIME -->
<!ENTITY Prime "″"> <!-- DOUBLE PRIME -->
<!ENTITY prop "∝"> <!-- -->
<!ENTITY radic "√"> <!-- -->
<!ENTITY rang "〉"> <!-- -->
<!ENTITY rArr "⇒"> <!-- RIGHTWARDS ARROW -->
<!ENTITY sim "∼"> <!-- -->
<!ENTITY sime "≃"> <!-- -->
<!ENTITY square "□"> <!-- WHITE SQUARE -->
<!ENTITY sub "⊂"> <!-- -->
<!ENTITY sube "⊆"> <!-- -->
<!ENTITY sup "⊃"> <!-- -->
<!ENTITY supe "⊇"> <!-- -->
<!ENTITY there4 "∴"> <!-- -->
<!ENTITY Verbar "‖"> <!-- DOUBLE VERTICAL LINE -->
<!ENTITY angst "Å"> <!-- ANGSTROM SIGN -->
<!ENTITY bernou "ℬ"> <!-- SCRIPT CAPITAL B -->
<!ENTITY compfn "∘"> <!-- RING OPERATOR -->
<!ENTITY Dot "¨"> <!-- -->
<!ENTITY DotDot "⃜"> <!-- COMBINING FOUR DOTS ABOVE -->
<!ENTITY hamilt "ℋ"> <!-- SCRIPT CAPITAL H -->
<!ENTITY lagran "ℒ"> <!-- SCRIPT CAPITAL L -->
<!ENTITY lowast "∗"> <!-- ASTERISK OPERATOR -->
<!ENTITY notin "∉"> <!-- -->
<!ENTITY order "ℴ"> <!-- SCRIPT SMALL O -->
<!ENTITY phmmat "ℳ"> <!-- SCRIPT CAPITAL M -->
<!ENTITY tdot "⃛"> <!-- COMBINING THREE DOTS ABOVE -->
<!ENTITY tprime "‴"> <!-- TRIPLE PRIME -->
<!ENTITY wedgeq "≙"> <!-- ESTIMATES -->