<!--
     (C) International Organization for Standardization 1986
     Permission to copy in any form is granted for use with
     conforming SGML systems and applications as defined in
     ISO 8879, provided this notice is included in all copies.
-->

<!--
     Character entity set. Typical invocation:
     <!ENTITY % isotech PUBLIC
       "ISO 8879-1986//ENTITIES Added Latin 1//EN">
     %isotech;
-->

<!ENTITY aleph    CDATA "&#8501;" ><!--ALEF SYMBOL -->
<!ENTITY and      CDATA "&#8743;" ><!--LOGICAL AND -->
<!ENTITY ang90    CDATA "&#8735;" ><!--RIGHT ANGLE -->
<!ENTITY angsph   CDATA "&#8738;" ><!--SPHERICAL ANGLE -->
<!ENTITY angst    CDATA "&#8491;" ><!--ANGSTROM SIGN -->
<!ENTITY ap       CDATA "&#8776;" ><!--ALMOST EQUAL TO -->
<!ENTITY becaus   CDATA "&#8757;" ><!--BECAUSE -->
<!ENTITY bernou   CDATA "&#8492;" ><!--SCRIPT CAPITAL B -->
<!ENTITY bottom   CDATA "&#8869;" ><!--UP TACK -->
<!ENTITY cap      CDATA "&#8745;" ><!--INTERSECTION -->
<!ENTITY compfn   CDATA "&#8728;" ><!--RING OPERATOR -->
<!ENTITY cong     CDATA "&#8773;" ><!--APPROXIMATELY EQUAL TO -->
<!ENTITY conint   CDATA "&#8750;" ><!--CONTOUR INTEGRAL -->
<!ENTITY cup      CDATA "&#8746;" ><!--UNION -->
<!ENTITY Dot      CDATA "&#168;" ><!--DIAERESIS -->
<!ENTITY DotDot   CDATA "&#8412;" ><!--COMBINING FOUR DOTS ABOVE -->
<!ENTITY equiv    CDATA "&#8801;" ><!--IDENTICAL TO -->
<!ENTITY exist    CDATA "&#8707;" ><!--THERE EXISTS -->
<!ENTITY fnof     CDATA "&#402;" ><!--LATIN SMALL LETTER F WITH HOOK -->
<!ENTITY forall   CDATA "&#8704;" ><!--FOR ALL -->
<!ENTITY ge       CDATA "&#8805;" ><!--GREATER-THAN OR EQUAL TO -->
<!ENTITY hamilt   CDATA "&#8459;" ><!--SCRIPT CAPITAL H -->
<!ENTITY iff      CDATA "&#8660;" ><!--LEFT RIGHT DOUBLE ARROW -->
<!ENTITY infin    CDATA "&#8734;" ><!--INFINITY -->
<!ENTITY int      CDATA "&#8747;" ><!--INTEGRAL -->
<!ENTITY isin     CDATA "&#8712;" ><!--ELEMENT OF -->
<!ENTITY lagran   CDATA "&#8466;" ><!--SCRIPT CAPITAL L -->
<!ENTITY lang     CDATA "&#9001;" ><!--LEFT-POINTING ANGLE BRACKET -->
<!ENTITY lArr     CDATA "&#8656;" ><!--LEFTWARDS DOUBLE ARROW -->
<!ENTITY le       CDATA "&#8804;" ><!--LESS-THAN OR EQUAL TO -->
<!ENTITY lowast   CDATA "&#8727;" ><!--ASTERISK OPERATOR -->
<!ENTITY minus    CDATA "&#8722;" ><!--MINUS SIGN -->
<!ENTITY mnplus   CDATA "&#8723;" ><!--MINUS-OR-PLUS SIGN -->
<!ENTITY nabla    CDATA "&#8711;" ><!--NABLA -->
<!ENTITY ne       CDATA "&#8800;" ><!--NOT EQUAL TO -->
<!ENTITY ni       CDATA "&#8715;" ><!--CONTAINS AS MEMBER -->
<!ENTITY notin    CDATA "&#8713;" ><!--NOT AN ELEMENT OF -->
<!ENTITY or       CDATA "&#8744;" ><!--LOGICAL OR -->
<!ENTITY order    CDATA "&#8500;" ><!--SCRIPT SMALL O -->
<!ENTITY par      CDATA "&#8741;" ><!--PARALLEL TO -->
<!ENTITY part     CDATA "&#8706;" ><!--PARTIAL DIFFERENTIAL -->
<!ENTITY permil   CDATA "&#8240;" ><!--PER MILLE SIGN -->
<!ENTITY perp     CDATA "&#8869;" ><!--UP TACK -->
<!ENTITY phmmat   CDATA "&#8499;" ><!--SCRIPT CAPITAL M -->
<!ENTITY Prime    CDATA "&#8243;" ><!--DOUBLE PRIME -->
<!ENTITY prime    CDATA "&#8242;" ><!--PRIME -->
<!ENTITY prop     CDATA "&#8733;" ><!--PROPORTIONAL TO -->
<!ENTITY radic    CDATA "&#8730;" ><!--SQUARE ROOT -->
<!ENTITY rang     CDATA "&#9002;" ><!--RIGHT-POINTING ANGLE BRACKET -->
<!ENTITY rArr     CDATA "&#8658;" ><!--RIGHTWARDS DOUBLE ARROW -->
<!ENTITY sim      CDATA "&#8764;" ><!--TILDE OPERATOR -->
<!ENTITY sime     CDATA "&#8771;" ><!--ASYMPTOTICALLY EQUAL TO -->
<!ENTITY square   CDATA "&#9633;" ><!--WHITE SQUARE -->
<!ENTITY sub      CDATA "&#8834;" ><!--SUBSET OF -->
<!ENTITY sube     CDATA "&#8838;" ><!--SUBSET OF OR EQUAL TO -->
<!ENTITY sup      CDATA "&#8835;" ><!--SUPERSET OF -->
<!ENTITY supe     CDATA "&#8839;" ><!--SUPERSET OF OR EQUAL TO -->
<!ENTITY tdot     CDATA "&#8411;" ><!--COMBINING THREE DOTS ABOVE -->
<!ENTITY there4   CDATA "&#8756;" ><!--THEREFORE -->
<!ENTITY tprime   CDATA "&#8244;" ><!--TRIPLE PRIME -->
<!ENTITY Verbar   CDATA "&#8214;" ><!--DOUBLE VERTICAL LINE -->
<!ENTITY wedgeq   CDATA "&#8793;" ><!--ESTIMATES -->
