U+2A3F "⨿" Amalgamation or Coproduct Unicode Character

U+2A3F "⨿" Amalgamation or Coproduct is a mathematical symbol used primarily in category theory and abstract algebra to represent the coproduct of two or more objects, which is a dual construction to the product that captures the idea of a disjoint union or direct sum in various algebraic structures. It visually resembles a plus sign enclosed within a circle, distinguishing it from other operators like the direct sum symbol (⊕) or the ordinary plus sign. Beyond category theory, this character may appear in contexts such as topology or logic where a coproduct operation or an amalgamated union of algebraic structures is defined, providing a precise notation for combining elements without overlap.

General Properties

Code Point	U+2A3F
Version Added	3.2
Name	Amalgamation or Coproduct
Block	Supplemental Mathematical Operators
General Category	Math Symbol
Canonical Combining Class	Not Reordered
Bidirectional Class	Other Neutral

Encodings

HTML Decimal Encoding	⨿
HTML Hex Encoding	⨿
UTF-8 Encoding	0xE2 0xA8 0xBF
UTF-16 Encoding	0x2A3F
UTF-32 Encoding	0x00002A3F
C/C++/Java Escape	\u2a3f

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
Pattern Syntax	Yes
Math	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Other
Sentence Break	Other