Home›Mathematical logic›signature🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPortuguêsРусскийفارسی中文日本語EntityQ741810· pop 12· linked from 359 articlessignaturenotion in mathematical logicAvailable in 12 languagesEspañolFrançaisDeutsch中文РусскийPortuguêsItalianoCzechLatinUkrainianConnectionsfirst-order logicEntitysemantic theory of truthEntityCategoriesMathematical logicModel theoryUniversal algebra