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single-element set
[ˈsɪŋɡəl ˈɛlɪmənt sɛt]
noun
pl: single-element sets
conjunto unitário
1.
A set in mathematics containing exactly one element or member
The set {5} is a single-element set because it contains only the number 5
O conjunto {5} é um conjunto unitário porque contém apenas o número 5
2.
A set with cardinality equal to one
Every single-element set has the same cardinality as {a}, where a is any object
Todo conjunto unitário tem a mesma cardinalidade que {a}, onde a é qualquer objeto
Synonyms
singleton set
unit set
singleton
Antonyms
empty set
multi-element set
infinite set
Regional Variations
General Brazilian
conjunto unitário
Standard mathematical terminology in Brazil
Portugal
conjunto singular
Alternative term also used in Portuguese mathematics
Portugal
conjunto unitário
Preferred term in formal Portuguese mathematics
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