proper subset

English

Euler diagram showing A is a proper subset of B,  A⊂B,  and conversely B is a proper superset of A.

Noun

proper subset (plural proper subsets)

1. (set theory) a set that is a subset of the set, but not equal to it.

   {2, 4, 5} is a proper subset of {1, 2, 3, 4, 5}, but {1, 2, 3, 4, 5} is not.

Hypernyms

• subset

Translations

a set that is a subset of but not equal to another set

• Chinese:

  Mandarin: 真子集 (zh) (zhēnzǐjí)

• Czech: vlastní podmnožina f
• Danish: ægte delmængde c
• Finnish: aito osajoukko
• French: sous-ensemble stricte m
• German: echte Teilmenge f
• Hungarian: valódi részhalmaz (hu)
• Icelandic: eiginlegt hlutmengi n
• Italian: sottoinsieme proprio m
• Swedish: proper delmängd, äkta delmängd (sv) c

References

• proper subset on Wikipedia.Wikipedia