empty set
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empty set
noun empty sets
-
The unique set that contains no elements, denoted ∅ or {}.
Start with the empty set. We define it as “the set of all objects not equal to themselves,” since there are no such objects. All empty sets have the same members—no members at all! Therefore, as sets they're identical, by definition of identity of sets. In other words, there's only one empty set. Th
Similar: null set
Translations
Every language
noun unique set that contains no elements
| Español | conjunto vacío |
|---|---|
| 日本語 | 空集合 kūshūgō |
| 中文 | 空集 kōngjí |
| Português | conjunto vazio |
| Français | ensemble vide |
| Deutsch | leere Menge |
| Italiano | insieme vuoto |
| Română | mulțime vidă |
| Русский | пусто́е мно́жество pustóje mnóžestvo |
| Tiếng Việt | tập hợp rỗng, tập rỗng |
Talk about this word "empty set." Wiktionary, via Micwyn, micwyn.com/word/empty%20set. Accessed 7 Nov. 2026. empty set. (n.d.). In Wiktionary, via Micwyn. Retrieved November 7, 2026, from https://micwyn.com/word/empty%20set "empty set." Wiktionary, via Micwyn. Accessed November 7, 2026. https://micwyn.com/word/empty%20set.
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@misc{empty_set_2026,
title = {empty set},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/empty%20set},
urldate = {2026-11-07}
}
