U+2285 Not A Superset Of
U+2285 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 glyph is a canonical composition of the glyphs
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 | 8837 |
UTF-8 | E2 8A 85 |
UTF-16 | 22 85 |
UTF-32 | 00 00 22 85 |
URL-Quoted | %E2%8A%85 |
HTML hex reference | ⊅ |
Wrong windows-1252 Mojibake | ⊅ |
HTML named entity | ⊅ |
Encoding: EUC_JIS_2004 (hex bytes) | A2 C3 |
Encoding: EUC_JISX0213 (hex bytes) | A2 C3 |
Encoding: GB18030 (hex bytes) | 81 36 DB 36 |
Encoding: ISO2022_JP_2004 (hex bytes) | 1B 24 28 51 22 43 1B 28 42 |
Encoding: ISO2022_JP_3 (hex bytes) | 1B 24 28 4F 22 43 1B 28 42 |
Encoding: SHIFT_JIS_2004 (hex bytes) | 81 C1 |
Encoding: SHIFT_JISX0213 (hex bytes) | 81 C1 |
LATEX | \not\supset |
Adobe Glyph List | notsuperset |
Related Characters
Elsewhere
Complete Record
Property | Value |
---|---|
1.1 (1993) | |
NOT A SUPERSET OF | |
— | |
Mathematical Operators | |
Math Symbol | |
Common | |
Other Neutral | |
Not Reordered | |
canonical | |
|
|
✘ | |
|
|
|
|
✘ | |
|
|
|
|
|
|
|
|
|
|
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
|
|
Any | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
0 | |
0 | |
0 | |
✘ | |
None | |
— | |
NA | |
Other | |
— | |
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
Yes | |
No | |
|
|
Yes | |
|
|
No | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
Other | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
Other | |
✘ | |
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
✔ | |
|
|
|
|
None | |
neutral | |
Not Applicable | |
— | |
No_Joining_Group | |
Non Joining | |
Alphabetic | |
none | |
not a number | |
|
|
R |