Home›Browse›레벨집합🌐한국어EnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsTiếng ViệtРусскийالعربيةفارسی한국어中文日本語EntityQ126955· pop 20· linked from 131 articles레벨집합Sign in to savesubset of a function's domain on which its value is equalAvailable in 20 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةAzerbaijaniCatalanNederlandsPolskiRomaniansimpleTiếng ViệtUkrainianفارسیShow 1 more한국어via Wikidata sitelinks · CC0