U+2A06 N-Ary Square Union Operator
U+2A06 was added in Unicode version 3.2 in 2002. It belongs to the block
This character is a Math Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. The word that U+2A06 forms with similar adjacent characters prevents a line break inside it. The glyph can be confused with one other glyph.
The Wikipedia has the following information about this codepoint:
In mathematics, the disjoint union (or discriminated union) of the sets A and B is the set formed from the elements of A and B labelled (indexed) with the name of the set from which they come. So, an element belonging to both A and B appears twice in the disjoint union, with two different labels.
A disjoint union of an indexed family of sets is a set often denoted by with an injection of each into such that the images of these injections form a partition of (that is, each element of belongs to exactly one of these images). A disjoint union of a family of pairwise disjoint sets is their union.
In category theory, the disjoint union is the coproduct of the category of sets, and thus defined up to a bijection. In this context, the notation is often used.
The disjoint union of two sets and is written with infix notation as . Some authors use the alternative notation or (along with the corresponding or ).
A standard way for building the disjoint union is to define as the set of ordered pairs such that and the injection as
Representations
System | Representation |
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Nº | 10758 |
UTF-8 | E2 A8 86 |
UTF-16 | 2A 06 |
UTF-32 | 00 00 2A 06 |
URL-Quoted | %E2%A8%86 |
HTML hex reference | ⨆ |
Wrong windows-1252 Mojibake | ⨆ |
HTML named entity | ⨆ |
HTML named entity | ⨆ |
Encoding: GB18030 (hex bytes) | 81 38 8B 32 |
LATEX | \Elxsqcup |
Related Characters
Confusables
Elsewhere
Complete Record
Property | Value |
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3.2 (2002) | |
N-ARY SQUARE UNION OPERATOR | |
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Supplemental Arrows-C | |
Math Symbol | |
Common | |
Other Neutral | |
Not Reordered | |
none | |
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✘ | |
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Any | |
✔ | |
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0 | |
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NA | |
Other | |
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✘ | |
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✔ | |
✘ | |
Yes | |
Yes | |
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Yes | |
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Yes | |
✘ | |
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Other | |
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Other | |
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neutral | |
Not Applicable | |
— | |
No_Joining_Group | |
Non Joining | |
Alphabetic | |
none | |
not a number | |
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R |