🌐EnglishEnglishDeutschEspañolPortuguêsالعربيةفارسیไทย中文日本語EntityQ204355· pop 14· linked from 365 articleslogical biconditionalAlso known as A xnor BtermAvailable in 13 languagesDeutsch日本語PortuguêsالعربيةCentral KurdishEstonianGalicianHebrewMacedonianNorwegianConnectionsnecessity and sufficiencyEntitysemantic theory of truthEntityCategoriesEquivalence (mathematics)Logical connectives