Home U+2A00 to U+2AFF Supplemental Mathematical Operators

# U+2A3E Z NOTATION RELATIONAL COMPOSITION

U+2A3E was added to Unicode in version 3.2 (2002). It belongs to the block U+2A00 to U+2AFF Supplemental Mathematical Operators 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 mirrored. The glyph can, under circumstances, be confused with 1 other glyphs. In text U+2A3E behaves as Alphabetic regarding line breaks. It has type Other for sentence and Other for word breaks. The Grapheme Cluster Break is Any.

In the mathematics of binary relations, the composition of relations is the forming of a new binary relation R; S from two given binary relations R and S. In the calculus of relations, the composition of relations is called relative multiplication, and its result is called a relative product.: 40  Function composition is the special case of composition of relations where all relations involved are functions.

The word uncle indicate a compound relation: for a person to be an uncle, he must be a brother of a parent. In algebraic logic it is said that the relation of Uncle (xUz) is the composition of relations "is a brother of" (xBy) and "is a parent of" (yPz).

U = B P ≡ x B y P z ⟺ x U z . {displaystyle U=BPquad equiv quad xByPziff xUz.}

Beginning with Augustus De Morgan, the traditional form of reasoning by syllogism has been subsumed by relational logical expressions and their composition.

## Representations

System Representation
10814
UTF-8 E2 A8 BE
UTF-16 2A 3E
UTF-32 00 00 2A 3E
URL-Quoted %E2%A8%BE
HTML-Escape &#x2A3E;
Wrong windows-1252 Mojibake â¨¾

## Complete Record

Property Value
Age 3.2 (2002)
Unicode Name Z NOTATION RELATIONAL COMPOSITION
Unicode 1 Name
Block Supplemental Arrows-C
General Category Math Symbol
Script Common
Bidirectional Category Other Neutral
Combining Class Not Reordered
Decomposition Type None
Decomposition Mapping Z Notation Relational Composition
Lowercase
Simple Lowercase Mapping Z Notation Relational Composition
Lowercase Mapping Z Notation Relational Composition
Uppercase
Simple Uppercase Mapping Z Notation Relational Composition
Uppercase Mapping Z Notation Relational Composition
Simple Titlecase Mapping Z Notation Relational Composition
Titlecase Mapping Z Notation Relational Composition
Case Folding Z Notation Relational Composition
ASCII Hex Digit
Alphabetic
Bidi Control
Bidi Mirrored
Bidi Paired Bracket Z Notation Relational Composition
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 Z Notation Relational Composition
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 Z Notation Relational Composition
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 Z Notation Relational Composition
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