U+1D55D "𝕝" Mathematical Double-Struck Small L Unicode Character

U+1D55D "𝕝" Mathematical Double-Struck Small L is a typographic symbol belonging to the Mathematical Alphanumeric Symbols block, designed for use in mathematical and scientific notation where a blackboard bold style is required. This character represents the lowercase letter L in a double-struck typeface, which is commonly used to denote specific sets, spaces, or variables, such as the Lebesgue space or a line in geometry, ensuring clear differentiation from ordinary italic or serif letters. It is not a default letter in standard text but is typically applied in formal mathematical typesetting, allowing writers to convey precise meanings without relying on formatting workarounds like boldface or additional symbols.

General Properties

Code Point	U+1D55D
Version Added	3.1
Name	Mathematical Double-Struck Small L
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"l" U+006C Latin Small Letter L

Encodings

HTML Decimal Encoding	𝕝
HTML Hex Encoding	𝕝
UTF-8 Encoding	0xF0 0x9D 0x95 0x9D
UTF-16 Encoding	0xD835 0xDD5D
UTF-32 Encoding	0x0001D55D
C/C++/Java Escape	\ud835\udd5d

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Lowercase	Yes
Cased	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"l" U+006C Latin Small Letter L
NFKC Simple Casefold	"l" U+006C Latin Small Letter L
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Math	Yes
Other Math	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Lower