<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>17352</termId><termName>Lógica formal clásica</termName><termType>PT</termType><termLanguage>es</termLanguage><termVocabulary>Tesauro</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>Lógica formal clásica</termSortkey><termNote label="Registro Aleph"><![CDATA[ 18611 ]]></termNote><termCreatedDate>Lógica formal clásica</termCreatedDate><relation><relationType>BT</relationType><termId>2622</termId><termName>Lógica</termName><termType>PT</termType></relation></term>  </Zthes>