Home U+27C0 to U+27EF Miscellaneous Mathematical Symbols-A

# U+27D9 LARGE DOWN TACK

U+27D9 was added to Unicode in version 3.2 (2002). It belongs to the block U+27C0 to U+27EF Miscellaneous Mathematical Symbols-A in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Math Symbol and is commonly used, that is, in no specific script.

The glyph is not a composition. It has a Neutral East Asian Width. In bidirectional context it acts as Other Neutral and is not mirrored. The glyph can, under circumstances, be confused with 1 other glyphs. In text U+27D9 behaves as Alphabetic regarding line breaks. It has type Other for sentence and Other for word breaks. The Grapheme Cluster Break is Any.

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 similar-looking superscript T may be used to mean the transpose of a matrix.

## Representations

System Representation
10201
UTF-8 E2 9F 99
UTF-16 27 D9
UTF-32 00 00 27 D9
URL-Quoted %E2%9F%99
HTML-Escape &#x27D9;
Wrong windows-1252 Mojibake â

## Complete Record

Property Value
Age 3.2 (2002)
Unicode Name LARGE DOWN TACK
Unicode 1 Name
Block Miscellaneous Mathematical Symbols-B
General Category Math Symbol
Script Common
Bidirectional Category Other Neutral
Combining Class Not Reordered
Decomposition Type None
Decomposition Mapping Large Down Tack
Lowercase
Simple Lowercase Mapping Large Down Tack
Lowercase Mapping Large Down Tack
Uppercase
Simple Uppercase Mapping Large Down Tack
Uppercase Mapping Large Down Tack
Simple Titlecase Mapping Large Down Tack
Titlecase Mapping Large Down Tack
Case Folding Large Down Tack
ASCII Hex Digit
Alphabetic
Bidi Control
Bidi Mirrored
Bidi Paired Bracket Large Down Tack
Bidi Paired Bracket Type None
Cased
Composition Exclusion
Case Ignorable
Full Composition Exclusion
Changes When Casefolded
Changes When Casemapped
Changes When NFKC Casefolded
Changes When Lowercased
Changes When Titlecased
Changes When Uppercased
Dash
Deprecated
Default Ignorable Code Point
Diacritic
East Asian Width Neutral
Emoji Modifier Base
Emoji Component
Emoji Modifier
Emoji
Emoji Presentation
Extender
Extended Pictographic
FC NFKC Closure Large Down Tack
Grapheme Cluster Break Any
Grapheme Base
Grapheme Extend
Hex Digit
Hangul Syllable Type Not Applicable
Hyphen
ID Continue
Ideographic
ID Start
IDS Binary Operator
IDS Trinary Operator and
Indic Mantra Category
Indic Positional Category NA
Indic Syllabic Category Other
ISO 10646 Comment
Joining Group No_Joining_Group
Join Control
Jamo Short Name
Joining Type Non Joining
Line Break Alphabetic
Logical Order Exception
Math
Noncharacter Code Point
NFC Quick Check Yes
NFD Quick Check Yes
NFKC Casefold Large Down Tack
NFKC Quick Check Yes
NFKD Quick Check Yes
Numeric Type None
Numeric Value not a number
Other Alphabetic
Other Default Ignorable Code Point
Other Grapheme Extend
Other ID Continue
Other ID Start
Other Lowercase
Other Math
Other Uppercase
Pattern Syntax
Pattern White Space
Prepended Concatenation Mark
Quotation Mark
Regional Indicator
Sentence Break Other
Simple Case Folding Large Down Tack
Script Extension
Soft Dotted
Sentence Terminal
Terminal Punctuation
Unified Ideograph
Vertical Orientation R
Variation Selector
Word Break Other
White Space
XID Continue
XID Start
Expands On NFC
Expands On NFD
Expands On NFKC
Expands On NFKD