Home›Mathematical logic›下位構造🌐日本語EnglishPortuguêsSvenska한국어中文日本語EntityQ859254· pop 5· linked from 330 articles下位構造subset of a structure that itself forms a structureAvailable in 5 languages中文PortuguêsSvenskaUkrainianvia Wikidata sitelinks · CC0Connectionssemantic theory of truthEntitymathematical logicEntityCategoriesMathematical logicModel theoryUniversal algebra