U+2282 Subset Of
U+2282 was added in Unicode version 1.1 in 1993. It belongs to the block
This character is a Math Symbol and is commonly used, that is, in no specific script. The character is also known as included in set.
The glyph is not a composition. Its width in East Asian texts is determined by its context. It can be displayed wide or narrow. In bidirectional text it acts as Other Neutral. When changing direction it is mirrored into
The CLDR project calls this character “subset of” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: of, set, subset.
The Wikipedia has the following information about this codepoint:
In mathematics, a set A is a subset of a set B if all elements of A are also elements of B; B is then a superset of A. It is possible for A and B to be equal; if they are unequal, then A is a proper subset of B. The relationship of one set being a subset of another is called inclusion (or sometimes containment). A is a subset of B may also be expressed as B includes (or contains) A or A is included (or contained) in B. A k-subset is a subset with k elements.
When quantified, is represented as
One can prove the statement by applying a proof technique known as the element argument:
Let sets A and B be given. To prove that
- suppose that a is a particular but arbitrarily chosen element of A
- show that a is an element of B.
The validity of this technique can be seen as a consequence of universal generalization: the technique shows for an arbitrarily chosen element c. Universal generalisation then implies which is equivalent to as stated above.
Representations
System | Representation |
---|---|
Nº | 8834 |
UTF-8 | E2 8A 82 |
UTF-16 | 22 82 |
UTF-32 | 00 00 22 82 |
URL-Quoted | %E2%8A%82 |
HTML hex reference | ⊂ |
Wrong windows-1252 Mojibake | ⊂ |
HTML named entity | ⊂ |
HTML named entity | ⊂ |
alias | included in set |
Encoding: CP932 (hex bytes) | 81 BC |
Encoding: CP949 (hex bytes) | A1 F8 |
Encoding: EUC_JP (hex bytes) | A2 BE |
Encoding: EUC_JIS_2004 (hex bytes) | A2 BE |
Encoding: EUC_JISX0213 (hex bytes) | A2 BE |
Encoding: EUC_KR (hex bytes) | A1 F8 |
Encoding: GB18030 (hex bytes) | 81 36 DB 33 |
Encoding: ISO2022_JP (hex bytes) | 1B 24 42 22 3E 1B 28 42 |
Encoding: ISO2022_JP_1 (hex bytes) | 1B 24 42 22 3E 1B 28 42 |
Encoding: ISO2022_JP_2 (hex bytes) | 1B 24 42 22 3E 1B 28 42 |
Encoding: ISO2022_JP_2004 (hex bytes) | 1B 24 42 22 3E 1B 28 42 |
Encoding: ISO2022_JP_3 (hex bytes) | 1B 24 42 22 3E 1B 28 42 |
Encoding: ISO2022_JP_EXT (hex bytes) | 1B 24 42 22 3E 1B 28 42 |
Encoding: ISO2022_KR (hex bytes) | 1B 24 29 43 0E 21 78 0F |
Encoding: JOHAB (hex bytes) | D9 9A |
Encoding: SHIFT_JIS (hex bytes) | 81 BC |
Encoding: SHIFT_JIS_2004 (hex bytes) | 81 BC |
Encoding: SHIFT_JISX0213 (hex bytes) | 81 BC |
LATEX | \subset |
Adobe Glyph List | propersubset |
Adobe Glyph List | subset |
digraph | (C |
Related Characters
Confusables
Elsewhere
Complete Record
Property | Value |
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1.1 (1993) | |
SUBSET OF | |
— | |
Mathematical Operators | |
Math Symbol | |
Common | |
Other Neutral | |
Not Reordered | |
none | |
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✘ | |
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✘ | |
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|
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|
|
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
|
|
Any | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
0 | |
0 | |
0 | |
✘ | |
None | |
— | |
NA | |
Other | |
— | |
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
Yes | |
Yes | |
|
|
Yes | |
|
|
Yes | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
Other | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
Other | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
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None | |
ambiguous | |
Not Applicable | |
— | |
No_Joining_Group | |
Non Joining | |
Ambiguous (Alphabetic or Ideographic) | |
none | |
not a number | |
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|
R |