(Q191290)

English

ordered pair

pair of mathematical objects; tuple of specific length (tuple length n=2)

(a, b)
2-tuples
sequences of length 2
2-dimensional vectors
couple
(ordered) pair
dual
twin
product
double
pair

In more languages

Statements

mathematical object

0 references

0 references

0 references

binary relation

1 reference

Elementi di teoria degli insiemi

9 November 2017

Ordered Pair Example.svg
500 × 500; 4 KB

0 references

0 references

0 references

defining formula

(a,b)=\{\{a\},\{a,b\}\}

discoverer or inventor

Kazimierz Kuratowski

time of discovery or invention

1921

1 reference

Elementi di teoria degli insiemi

9 November 2017

(a_{1},b_{1})=(a_{2},b_{2})\quad \Leftrightarrow \quad a_{1}=a_{2}{\text{ and }}b_{1}=b_{2}

0 references

(a,b):=\{\{\{a\},\,\emptyset \},\,\{\{b\}\}\}

discoverer or inventor

time of discovery or invention

1914

0 references

(a,b):=\{\{a,1\},\{b,2\}\}

discoverer or inventor

Felix Hausdorff

time of discovery or invention

1914

0 references

cardinality of this set

1 reference

Elementi di teoria degli insiemi

9 November 2017

1 reference

Elementi di teoria degli insiemi

9 November 2017

Identifiers

1 reference

Freebase Data Dumps

publication date

28 October 2013

0 references

MathWorld identifier

0 references

0 references

Encyclopædia Britannica Online ID

topic/ordered-pair

0 references

0 references

Sitelinks

Wikipedia(46 entries)

Wikibooks(0 entries)

Wikinews(0 entries)

Wikiquote(0 entries)

Wikisource(0 entries)

Wikiversity(0 entries)

Wikivoyage(0 entries)

Wiktionary(0 entries)

Other sites(0 entries)

Retrieved from "https://www.wikidata.org/w/index.php?title=Q191290&oldid=994982184"