<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>13</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Joaquín Borrego-Díaz</style></author><author><style face="normal" font="default" size="100%">Alejandro Fernández-Margarit</style></author><author><style face="normal" font="default" size="100%">Mario J. Pérez-Jiménez</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">A. Rojszczak</style></author><author><style face="normal" font="default" size="100%">J. Cachro</style></author><author><style face="normal" font="default" size="100%">G. Kurczewski</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">On Sigma-n definability in Arithmetic.</style></title><secondary-title><style face="normal" font="default" size="100%">Philosophical Dimensions of Logic and Science</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2003</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.cs.us.es/~marper/investigacion/definab.pdf</style></url></web-urls><related-urls><url><style face="normal" font="default" size="100%">http://www.gcn.us.es/files/definab.pdf</style></url></related-urls></urls><section><style face="normal" font="default" size="100%">4</style></section><edition><style face="normal" font="default" size="100%">1</style></edition><publisher><style face="normal" font="default" size="100%">Springer</style></publisher><pages><style face="normal" font="default" size="100%">47-56</style></pages><isbn><style face="normal" font="default" size="100%">978-1402016455</style></isbn></record></records></xml>