<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>20196</termId><termName>Cálculo diferencial</termName><termType>PT</termType><termCreatedDate>2014-09-15 20:07:32</termCreatedDate><relation><relationType>UF</relationType><termId>20197</termId><termName>Derivadas (Cálculo)</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>20198</termId><termName>Cálculo de derivadas</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>20193</termId><termName>Cálculo</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>20539</termId><termName>Cálculo infinitesimal</termName><termType>TT</termType></relation><relation><relationType>RT</relationType><termId>340</termId><termName>Derivadas</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>5823</termId><termName>Ecuaciones diferenciales</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>20194</termId><termName>Cálculo integral</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>20153</termId><termName>Funciones de variable real</termName><termType>PT</termType></relation></term>  </Zthes>