<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0185-3058</journal-id>
<journal-title><![CDATA[Nova tellus]]></journal-title>
<abbrev-journal-title><![CDATA[Nova tellus]]></abbrev-journal-title>
<issn>0185-3058</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Investigaciones Filológicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-30582005000100023</article-id>
<article-id pub-id-type="doi">10.19130/iifl.nt.2005.23.1.149</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[El gnomón y el esclavo]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Ochoa]]></surname>
<given-names><![CDATA[César]]></given-names>
</name>
</contrib>
</contrib-group>
<aff id="A">
<institution><![CDATA[,  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2005</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2005</year>
</pub-date>
<volume>23</volume>
<numero>1</numero>
<fpage>23</fpage>
<lpage>47</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-30582005000100023&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-30582005000100023&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-30582005000100023&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El descubrimiento de los números irracionales introduce una ruptura en la visión de mundo del hombre de la Grecia antigua. En este trabajo se analiza brevemente la época posterior a ese descubrimiento, tal como incidentalmente aparece en el Menón, en especial donde Sócrates interroga a un joven esclavo. De manera más extensa se describe la época anterior, pero no directamente, sino por medio de la descripción de un instrumento de múltiples funciones: el gnomón .]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The discovery of irrational numbers introduces a rupture in the way ancient Greeks conceived the world. This article briefly starts analyzing the period after such discovery was made, as it incidentally appears in Meno, especially where Socrates questions a young slave. Then, although not directly, the author extensively describes the previous period by examining an instrument of multiple functions: the gnomón.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[aritmética griega]]></kwd>
<kwd lng="es"><![CDATA[astronomía griega]]></kwd>
<kwd lng="es"><![CDATA[gnomón]]></kwd>
<kwd lng="es"><![CDATA[matemáticas]]></kwd>
<kwd lng="es"><![CDATA[platón]]></kwd>
<kwd lng="en"><![CDATA[aritmética griega]]></kwd>
<kwd lng="en"><![CDATA[astronomía griega]]></kwd>
<kwd lng="en"><![CDATA[gnomón]]></kwd>
<kwd lng="en"><![CDATA[matemáticas]]></kwd>
<kwd lng="en"><![CDATA[platón]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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</article>
