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</topic><topic id="http://thesaurus.abuledu.org/thesaurus/vocab/?tema=307"><instanceOf><topicRef xlink:href="#term"/></instanceOf><baseName><baseNameString>Additions</baseNameString></baseName>  <occurrence>    <instanceOf>      <topicRef xlink:href="#scope-note"/>    </instanceOf><baseName><baseNameString><![CDATA[ <p><img title="Somme des carr&eacute;s." src="http://data-cache.abuledu.org/512/somme-des-carres-529c3f36.jpg" alt="chacune des trois pyramides a pour volume la somme des carr&eacute;s de 1 &agrave; n (n=4 dans cette illustration) ; le parall&eacute;l&eacute;pip&egrave;de final est de c&ocirc;t&eacute;s n, n+1 et n+1/2. Ce r&eacute;sultat se g&eacute;n&eacute;ralise pour la somme des n premi&egrave;res puissances strictement positives. Cette somme porte le nom de formule de Faulhaber. Johann Faulhaber (1580-1635) est un math&eacute;maticien allemand qui collabora avec Kepler." width="150" height="32" /></p>
<p>L'addition est l'op&eacute;ration qui consiste &agrave; r&eacute;unir des objets ou des grandeurs, exprim&eacute;es avec la m&ecirc;me unit&eacute; de mesure.</p> ]]></baseNameString></baseName>  </occurrence></topic>  <association>    <instanceOf>      <topicRef xlink:href="#broader-narrower"/>    </instanceOf>    <member>      <roleSpec>  <topicRef xlink:href="#narrower"/>      </roleSpec>      <topicRef xlink:href="#http://thesaurus.abuledu.org/thesaurus/vocab/?tema=307"/>    </member>    <member>      <roleSpec>  <topicRef xlink:href="#broader"/>      </roleSpec>      <topicRef xlink:href="#http://thesaurus.abuledu.org/thesaurus/vocab/?tema=302"/>    </member>  </association></topicMap>