<?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>1665-1324</journal-id>
<journal-title><![CDATA[Signos filosóficos]]></journal-title>
<abbrev-journal-title><![CDATA[Sig. Fil]]></abbrev-journal-title>
<issn>1665-1324</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Metropolitana, División de Ciencias Sociales y Humanidades]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-13242021000200150</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[¿Qué es el concepto caballo?]]></article-title>
<article-title xml:lang="en"><![CDATA[What is the concept of horse?]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernández de Castro]]></surname>
<given-names><![CDATA[Max]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espinoza Coronel]]></surname>
<given-names><![CDATA[María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Metropolitana Departamento de Filosofía ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>23</volume>
<numero>46</numero>
<fpage>150</fpage>
<lpage>177</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-13242021000200150&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-13242021000200150&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-13242021000200150&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Como es muy conocido, Frege afirmó que la expresión &#8216;el concepto caballo&#8217; se refiere a un objeto y no a un concepto. En este artículo, en primer lugar, mostramos cómo hay algunos barruntos de esta paradoja en textos anteriores a 1891. En segundo lugar, revisamos algunos argumentos que defienden que con el término &#8216;el concepto caballo&#8217; Frege se refería a la extensión del mencionado concepto. Por último, sostendremos que, aun cuando el concepto caballo sea dicha extensión, es muy poco lo que sabemos de su naturaleza. Esto último se debe a la forma fragmentaria en que Frege introduce las extensiones de concepto en los Grundgesetze y en ensayos previos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract As is well known, Frege stated that the expression &#8216;the concept horse&#8217; refers to an object and not to a concept. In this article we firstly show how there are some hints of this paradox in texts prior to 1891. Secondly we review some arguments given in the literature to hold that with &#8216;the concept horse&#8217; Frege referred to the extension of the mentioned concept. Finally, we argue that, even if the concept horse is such an extension, we still know very little about its nature, given the fragmentary way in which Frege introduces the extensions of concepts in Grundgesetze and in previous essays.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Frege]]></kwd>
<kwd lng="es"><![CDATA[inefabilidad]]></kwd>
<kwd lng="es"><![CDATA[extensión]]></kwd>
<kwd lng="es"><![CDATA[representación]]></kwd>
<kwd lng="es"><![CDATA[paradoja]]></kwd>
<kwd lng="en"><![CDATA[Frege]]></kwd>
<kwd lng="en"><![CDATA[innefability]]></kwd>
<kwd lng="en"><![CDATA[extension]]></kwd>
<kwd lng="en"><![CDATA[representation]]></kwd>
<kwd lng="en"><![CDATA[paradox]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Burge]]></surname>
<given-names><![CDATA[Tyler]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Frege on extensions of concepts, from 1884 to 1903]]></article-title>
<source><![CDATA[The Philosophical Review]]></source>
<year>1984</year>
<volume>93</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>3-34</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<source><![CDATA[Basic Laws of Arithmetic]]></source>
<year>2013</year>
<publisher-loc><![CDATA[Oxford ]]></publisher-loc>
<publisher-name><![CDATA[Oxford University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<source><![CDATA[Collected Papers on Mathematics, Logic, and Philosophy]]></source>
<year>1984</year>
<publisher-loc><![CDATA[Oxford ]]></publisher-loc>
<publisher-name><![CDATA[Blackwell Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<source><![CDATA[Philosophical and Mathematical Correspondence]]></source>
<year>1980</year>
<publisher-loc><![CDATA[Chicago ]]></publisher-loc>
<publisher-name><![CDATA[The University of Chicago Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<source><![CDATA[Posthumous Writings]]></source>
<year>1979</year>
<publisher-loc><![CDATA[Chicago ]]></publisher-loc>
<publisher-name><![CDATA[The University of Chicago Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<source><![CDATA[Grundgesetze der Arithmetik, begriffsschriftlich abgeleitet]]></source>
<year>1893</year>
<publisher-loc><![CDATA[Jena ]]></publisher-loc>
<publisher-name><![CDATA[Herman Pole]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ausführungen über Sinn und Bedeutung]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<source><![CDATA[Posthumous Writings]]></source>
<year>1892</year>
<page-range>118-25</page-range><publisher-loc><![CDATA[Chicago ]]></publisher-loc>
<publisher-name><![CDATA[The University of Chicago Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[On concept and object]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<source><![CDATA[Collected Papers on Mathematics, Logic, and Philosophy]]></source>
<year>1892</year>
<page-range>182-92</page-range><publisher-loc><![CDATA[Oxford ]]></publisher-loc>
<publisher-name><![CDATA[Blackwell Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Function and concept]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<source><![CDATA[Collected Papers on Mathematics, Logic, and Philosophy]]></source>
<year>1891</year>
<page-range>137-56</page-range><publisher-loc><![CDATA[Oxford ]]></publisher-loc>
<publisher-name><![CDATA[Blackwell Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Über das Trägheitsgesetz]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<source><![CDATA[Collected Papers on Mathematics, Logic, and Philosophy]]></source>
<year>1885</year>
<page-range>123-37</page-range><publisher-loc><![CDATA[Oxford ]]></publisher-loc>
<publisher-name><![CDATA[Blackwell Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ueber formale Theorien der Arithmetik]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<source><![CDATA[Collected Papers on Mathematics, Logic, and Philosophy]]></source>
<year>1885</year>
<page-range>112-21</page-range><publisher-loc><![CDATA[Oxford ]]></publisher-loc>
<publisher-name><![CDATA[Blackwell Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<source><![CDATA[Die Grundlagen der Arithmetik. Eine logisch mathematische Untersuchung über den Begriff der Zahl, Breslavia]]></source>
<year>1884</year>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Boole&#8217;s logical Formula-language and my Concept-script]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<source><![CDATA[Posthumous Writings]]></source>
<year>1882</year>
<page-range>47-52</page-range><publisher-loc><![CDATA[Chicago ]]></publisher-loc>
<publisher-name><![CDATA[The University of Chicago Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Booles rechnende Logik und die Begriffsschrift]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<source><![CDATA[Posthumous Writings]]></source>
<year>1881</year>
<page-range>9-46</page-range><publisher-loc><![CDATA[Chicago ]]></publisher-loc>
<publisher-name><![CDATA[The University of Chicago Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frege]]></surname>
<given-names><![CDATA[Gottlob]]></given-names>
</name>
</person-group>
<source><![CDATA[Begriffsschrift, eine der arithmetischen nachgebildete Formelsprache des reinen Denkens]]></source>
<year>1879</year>
<publisher-loc><![CDATA[Halle ]]></publisher-loc>
<publisher-name><![CDATA[Verlag von Louis Nebert]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Heck]]></surname>
<given-names><![CDATA[Richard]]></given-names>
</name>
</person-group>
<source><![CDATA[Reading Frege&#8217;s Grundgesetz]]></source>
<year>2012</year>
<publisher-loc><![CDATA[Oxford ]]></publisher-loc>
<publisher-name><![CDATA[Oxford University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Landini]]></surname>
<given-names><![CDATA[Gregory]]></given-names>
</name>
</person-group>
<source><![CDATA[Frege&#8217;s Notations. What They Are and How They Mean]]></source>
<year>2012</year>
<publisher-loc><![CDATA[Londres ]]></publisher-loc>
<publisher-name><![CDATA[Palgrave-Macmillan]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Proietti]]></surname>
<given-names><![CDATA[Carlo]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Kerry-Frege debate about object and concept, some remarks on Kerry&#8217;s position]]></article-title>
<source><![CDATA[Analitica]]></source>
<year>2010</year>
<volume>3</volume>
<page-range>96-104</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Proops]]></surname>
<given-names><![CDATA[Ian]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[What is Frege&#8217;s &#8216;concept horse problem&#8217;?]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Potter]]></surname>
<given-names><![CDATA[Michael]]></given-names>
</name>
<name>
<surname><![CDATA[Sullivan]]></surname>
<given-names><![CDATA[Peter]]></given-names>
</name>
</person-group>
<source><![CDATA[Wittgenstein&#8217;s Tractatus: History and Interpretation]]></source>
<year>2013</year>
<page-range>76-96</page-range><publisher-loc><![CDATA[Oxford ]]></publisher-loc>
<publisher-name><![CDATA[Oxford University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rouilhan]]></surname>
<given-names><![CDATA[Philippe de]]></given-names>
</name>
</person-group>
<source><![CDATA[Frege. Les paradoxes de la représentation]]></source>
<year>1988</year>
<publisher-loc><![CDATA[París ]]></publisher-loc>
<publisher-name><![CDATA[Les Éditions de Minuit]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ruffino]]></surname>
<given-names><![CDATA[Marco]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Extensions as representative objects in Frege&#8217;s logic]]></article-title>
<source><![CDATA[Erkenntnis]]></source>
<year>2000</year>
<numero>52</numero>
<issue>52</issue>
<page-range>239-52</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Russell]]></surname>
<given-names><![CDATA[Bertrand]]></given-names>
</name>
</person-group>
<source><![CDATA[The Principles of Mathematics]]></source>
<year>1996</year>
<publisher-loc><![CDATA[Nueva York/Londres ]]></publisher-loc>
<publisher-name><![CDATA[W. W. Norton &amp; Company]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Weiner]]></surname>
<given-names><![CDATA[Joan]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Why does Frege care whether Julius Caesar is a number? Section 10 of Basic Laws and the context principle]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Ebert]]></surname>
<given-names><![CDATA[Philip]]></given-names>
</name>
<name>
<surname><![CDATA[Rossberg]]></surname>
<given-names><![CDATA[Marcus]]></given-names>
</name>
</person-group>
<source><![CDATA[Essays on Frege&#8217;s Basic Laws of Arithmetic]]></source>
<year>2019</year>
<page-range>115-41</page-range><publisher-loc><![CDATA[Oxford ]]></publisher-loc>
<publisher-name><![CDATA[Oxford University Press]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
