U+2228 Logical Or
U+2228 was added in Unicode version 1.1 in 1993. It belongs to the block Mathematical Operators in the Basic Multilingual Plane.
This character is a Math Symbol and is commonly used, that is, in no specific script. The character is also known as vee and disjunction.
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 not mirrored. If its East Asian Width is “narrow”, U+2228 forms a word with similar characters, which prevents a line break inside it. Otherwise it allows line breaks around it, except in some numeric contexts. The glyph can be confused with one other glyph.
The Wikipedia has the following information about this codepoint:
The descending wedge symbol ∨ may represent:
- Logical disjunction in propositional logic
- Join in lattice theory
- The wedge sum in topology
- The V sign, a symbol representing peace among other things
The vertically reflected symbol, ∧, is a wedge, and often denotes related or dual operators.
The ∨ symbol was introduced by Russell and Whitehead in Principia Mathematica, where they called it the Logical Sum or Disjunctive Function.
In Unicode the symbol is encoded U+2228 ∨ LOGICAL OR (∨, ∨). In TeX, it is
veeorlor.One motivation and the most probable explanation for the choice of the symbol ∨ is the latin word "vel" meaning "or" in the inclusive sense. Several authors use "vel" as name of the "or" function.
Representations
| System | Representation |
|---|---|
| Nº | 8744 |
| UTF-8 | E2 88 A8 |
| UTF-16 | 22 28 |
| UTF-32 | 00 00 22 28 |
| URL-Quoted | %E2%88%A8 |
| HTML hex reference | ∨ |
| Wrong windows-1252 Mojibake | ∨ |
| HTML named entity | ∨ |
| HTML named entity | ∨ |
| alias | vee |
| alias | disjunction |
| Encoding: CP932 (hex bytes) | 81 C9 |
| Encoding: CP949 (hex bytes) | A1 FD |
| Encoding: EUC_JP (hex bytes) | A2 CB |
| Encoding: EUC_JIS_2004 (hex bytes) | A2 CB |
| Encoding: EUC_JISX0213 (hex bytes) | A2 CB |
| Encoding: EUC_KR (hex bytes) | A1 FD |
| Encoding: GB2312 (hex bytes) | A1 C5 |
| Encoding: GBK (hex bytes) | A1 C5 |
| Encoding: GB18030 (hex bytes) | A1 C5 |
| Encoding: HZ (hex bytes) | 7E 7B 21 45 7E 7D |
| Encoding: ISO2022_JP (hex bytes) | 1B 24 42 22 4B 1B 28 42 |
| Encoding: ISO2022_JP_1 (hex bytes) | 1B 24 42 22 4B 1B 28 42 |
| Encoding: ISO2022_JP_2 (hex bytes) | 1B 24 42 22 4B 1B 28 42 |
| Encoding: ISO2022_JP_2004 (hex bytes) | 1B 24 42 22 4B 1B 28 42 |
| Encoding: ISO2022_JP_3 (hex bytes) | 1B 24 42 22 4B 1B 28 42 |
| Encoding: ISO2022_JP_EXT (hex bytes) | 1B 24 42 22 4B 1B 28 42 |
| Encoding: ISO2022_KR (hex bytes) | 1B 24 29 43 0E 21 7D 0F |
| Encoding: JOHAB (hex bytes) | D9 9F |
| Encoding: SHIFT_JIS (hex bytes) | 81 C9 |
| Encoding: SHIFT_JIS_2004 (hex bytes) | 81 C9 |
| Encoding: SHIFT_JISX0213 (hex bytes) | 81 C9 |
| LATEX | \vee |
| Adobe Glyph List | logicalor |
| digraph | OR |
Related Characters
Confusables
Elsewhere
Complete Record
| Property | Value |
|---|---|
| 1.1 (1993) | |
| LOGICAL OR | |
| — | |
| Mathematical Operators | |
| Math Symbol | |
| Common | |
| Other Neutral | |
| Not Reordered | |
| none | |
| Logical Or | |
| ✘ | |
| Logical Or | |
| Logical Or | |
| ✘ | |
| Logical Or | |
| Logical Or | |
| Logical Or | |
| Logical Or | |
| Logical Or | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| Logical Or | |
| Any | |
| ✔ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| 0 | |
| 0 | |
| 0 | |
| ✘ | |
| None | |
| — | |
| NA | |
| Other | |
| — | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✔ | |
| ✘ | |
| Yes | |
| Yes | |
| Logical Or | |
| Yes | |
| Logical Or | |
| Yes | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✔ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| Other | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| Other | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| Logical Or | |
| None | |
| ambiguous | |
| Not Applicable | |
| — | |
| No_Joining_Group | |
| Non Joining | |
| Ambiguous (Alphabetic or Ideographic) | |
| none | |
| not a number | |
| Logical Or | |
| R |