<?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>0011-1503</journal-id>
<journal-title><![CDATA[Crítica (México, D.F.)]]></journal-title>
<abbrev-journal-title><![CDATA[Crítica (Méx., D.F.)]]></abbrev-journal-title>
<issn>0011-1503</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Investigaciones Filosóficas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0011-15032011000100027</article-id>
<article-id pub-id-type="doi">10.22201/iifs.18704905e.2011.851</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Petitio principii, ad ignorantiam y fundamentación del conocimiento]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vilanova Arias]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Complutense de Madrid Departamento de Lógica Facultad de Filosofía]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2011</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2011</year>
</pub-date>
<volume>43</volume>
<numero>127</numero>
<fpage>27</fpage>
<lpage>57</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0011-15032011000100027&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0011-15032011000100027&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0011-15032011000100027&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Se examina el problema de la circularidad argumental en la fundamentación del conocimiento desde la teoría de la argumentación. Los argumentos dirigidos a probar que sabemos (argumentos fundamentadores) son sospechosos de dos falacias: petición de principio y apelación a la ignorancia. Se examinan las definiciones clásicas de ambas falacias y se dictamina que bajo tales definiciones los argumentos fundamentadores serían falaces. A continuación se proporcionan nuevas definiciones de ambas falacias, más acordes con el trabajo reciente en teoría de la argumentación y se sostiene que, bajo estas definiciones, no todos los argumentos fundamentadores son falaces.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary: In this paper I examine the problem of circularity in the justification of knowledge from the point of view of argumentation theory. I introduce the expression founding argument for the arguments we use to try to prove that we know, and explain the classical account of the two fallacies that may be committed: ad ignorantiam and petitio principii. A new definition of both fallacies, based on recent work in the theory of argumentation, is used to show that not every founding argument is fallacious.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[argumentación]]></kwd>
<kwd lng="es"><![CDATA[circularidad argumental]]></kwd>
<kwd lng="es"><![CDATA[elusión del problema]]></kwd>
<kwd lng="es"><![CDATA[justificación epistémica]]></kwd>
<kwd lng="en"><![CDATA[argumentation]]></kwd>
<kwd lng="en"><![CDATA[argument circularity]]></kwd>
<kwd lng="en"><![CDATA[begging the question]]></kwd>
<kwd lng="en"><![CDATA[epistemic justification]]></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[Alston]]></surname>
<given-names><![CDATA[W.P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Epistemic Circularity]]></article-title>
<source><![CDATA[Philosophy and Phenomenological Research]]></source>
<year>1986</year>
<volume>47</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-30</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Boghossian]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analyticity Reconsidered]]></article-title>
<source><![CDATA[Noûs]]></source>
<year>1996</year>
<volume>30</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>360-91</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Boghossian]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Peacocke]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[New Essays on the A Priori]]></source>
<year>2000</year>
<publisher-loc><![CDATA[Oxford ]]></publisher-loc>
<publisher-name><![CDATA[Clarendon Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cohen]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Basic Knowledge and the Problem of Easy Knowledge]]></article-title>
<source><![CDATA[Philosophy and Phenomenological Research]]></source>
<year>2002</year>
<volume>67</volume>
<page-range>309-29</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Copi]]></surname>
<given-names><![CDATA[I.M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Introduction to Logic]]></source>
<year>1961</year>
<publisher-loc><![CDATA[Nueva York ]]></publisher-loc>
<publisher-name><![CDATA[Macmillan]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Davies]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Two Purposes of Arguing and Two Epistemic Projects]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Ravenscroft]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<source><![CDATA[Minds, Ethics, and Conditionals: Themes from the Philosophy of Frank Jackson]]></source>
<year>2006</year>
<page-range>337-85</page-range><publisher-loc><![CDATA[Londres ]]></publisher-loc>
<publisher-name><![CDATA[Oxford University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Davies]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Epistemic Entitlement, Warrant Transmission and Easy Knowledge]]></article-title>
<source><![CDATA[Proceedings of the Aristotelian Society]]></source>
<year>2004</year>
<numero>^s28</numero>
<issue>^s28</issue>
<supplement>28</supplement>
<page-range>213-45</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Davies]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Boghossian]]></surname>
</name>
<name>
<surname><![CDATA[Peacocke]]></surname>
</name>
</person-group>
<source><![CDATA[Externalism and Armchair Knowledge]]></source>
<year>2000</year>
<page-range>384-415</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jackson]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Conditionals]]></source>
<year>1987</year>
<publisher-loc><![CDATA[Londres ]]></publisher-loc>
<publisher-name><![CDATA[Basil Blackwell]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moore]]></surname>
<given-names><![CDATA[G.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Four Forms of Scepticism]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Moore]]></surname>
<given-names><![CDATA[G.E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Philosophical Papers]]></source>
<year>1940</year>
<page-range>196-226</page-range><publisher-loc><![CDATA[Londres ]]></publisher-loc>
<publisher-name><![CDATA[Allen and Unwin]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pryor]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[What&#8217;s Wrong with Moore&#8217;s Argument?]]></article-title>
<source><![CDATA[Philosophical Issues]]></source>
<year>2004</year>
<volume>14</volume>
<page-range>350-78</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sosa]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[How to Resolve the Pyrrhonian Problematic: A Lesson from Descartes]]></article-title>
<source><![CDATA[Philosophical Studies]]></source>
<year>1997</year>
<volume>35,</volume>
<page-range>229-49</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vilanova]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Many Faces of Mc Kinsey&#8217;s Paradox]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Fernández]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
</person-group>
<source><![CDATA[Language, Nature and Science]]></source>
<year>2009</year>
<page-range>209-31</page-range><publisher-loc><![CDATA[Madrid ]]></publisher-loc>
<publisher-name><![CDATA[Plaza y Valdés]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vilanova]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fundamentación sin fundamentalismos]]></article-title>
<source><![CDATA[Praxis Filosófica]]></source>
<year>2008</year>
<volume>27</volume>
<page-range>7-31</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vilanova]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Implicit Definitions and Knowledge of Logic]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Falgueras]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Sagüillo]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Current Topics in Logic and Analytic Philosophy]]></source>
<year>2007</year>
<page-range>117-38</page-range><publisher-loc><![CDATA[Santiago de Compostela ]]></publisher-loc>
<publisher-name><![CDATA[Ediciones Universitarias]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Walton]]></surname>
<given-names><![CDATA[D.N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Epistemic and Dialectical Models of Begging the Question]]></article-title>
<source><![CDATA[Synthese]]></source>
<year>2006</year>
<volume>152</volume>
<page-range>237-54</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Walton]]></surname>
<given-names><![CDATA[D.N.]]></given-names>
</name>
</person-group>
<source><![CDATA[Arguments from Ignorance]]></source>
<year>1999</year>
<publisher-loc><![CDATA[Pensilvania ]]></publisher-loc>
<publisher-name><![CDATA[Penn State Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Walton]]></surname>
<given-names><![CDATA[D.N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Begging the Question as a Pragmatic Fallacy]]></article-title>
<source><![CDATA[Synthese]]></source>
<year>1994</year>
<volume>100</volume>
<page-range>95-131</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Walton]]></surname>
<given-names><![CDATA[D.N.]]></given-names>
</name>
</person-group>
<source><![CDATA[Begging the Question: Circular Reasoning as a Tactic of Argumentation]]></source>
<year>1991</year>
<publisher-loc><![CDATA[Nueva York ]]></publisher-loc>
<publisher-name><![CDATA[Greenwood Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wright]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Warrant for Nothing (and Foundations for Free?)]]></article-title>
<source><![CDATA[Proceedings of the Aristotelian Society]]></source>
<year>2004</year>
<numero>^s78</numero>
<issue>^s78</issue>
<supplement>78</supplement>
<page-range>167-212</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wright]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Facts and Certainty]]></article-title>
<source><![CDATA[Proceedings of the British Academy]]></source>
<year>1985</year>
<volume>31</volume>
<page-range>429-72</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
