This character is a Math Symbol and is commonly used, that is, in no specific script. The character is also known as top.
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+22A4 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:
The tee (⊤, op in LaTeX), also called down tack (as opposed to the up tack) or verum, is a symbol used to represent:
The top element in lattice theory.
The truth value of being true in logic, or a sentence (e.g., formula in propositional calculus) which is unconditionally true. By definition, every tautology is logically equivalent to the verum.
The top type in type theory.
Mixed radix encoding in the APL programming language.
A lowered phonic in the International Phonetic Alphabet and phonetics. In this usage, it is usually written under the primary IPA symbol.
A similar-looking superscript T may be used to mean the transpose of a matrix.
Representations
System
Representation (click value to copy)
Nº
8868
UTF-8
E2 8A A4
UTF-16
22 A4
UTF-32
00 00 22 A4
URL-Quoted
%E2%8A%A4
HTML hex reference
⊤
Wrong windows-1252 Mojibake
⊤
HTML named entity
⊤
HTML named entity
⊤
alias
top
Encoding: GB18030 (hex bytes)
81 36 DE 35
LATEX
\top
Adobe Glyph List
tackdown
RFC 5137
\u'22A4'
Bash and Zsh inside echo -e
\u22A4
C and C++
\u22A4
C#
\u22A4
CSS
\0022A4
Excel
=UNICHAR(8868)
Go
\u22A4
JavaScript
\u22A4
Modern JavaScript since ES6
\u{22a4}
JSON
\u22A4
Java
\u22A4
Lua
\u{22A4}
Matlab
char(8868)
Perl
"\x{22A4}"
PHP
\u{22a4}
PostgreSQL
U&'\22A4'
PowerShell
`u{22A4}
Python
\u22A4
Ruby
\u{22a4}
Rust
\u{22a4}
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