U+1D523 "𝔣" Mathematical Fraktur Small F Unicode Character
Unicode Version 17.0
𝔣
U+1D523 "𝔣" Mathematical Fraktur Small F is a glyph from the Mathematical Alphanumeric Symbols block, designed for use in mathematical and scientific notation to represent a blackletter style of the lowercase letter f. This character is distinct from the ordinary Latin small f, allowing writers to differentiate variables, constants, or specific terms in formal contexts such as set theory, Boolean algebra, or number theory. Its decorative, angular appearance originates from medieval Fraktur script, but in modern computing it is primarily employed for its semantic role within mathematical expressions.
General Properties
| Code Point | U+1D523 |
| Version Added | 3.1 |
| Name | Mathematical Fraktur Small F |
| Block | Mathematical Alphanumeric Symbols |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Font |
| Decomposition Mapping | "f" U+0066 Latin Small Letter F |
Encodings
| HTML Decimal Encoding | 𝔣 |
| HTML Hex Encoding | 𝔣 |
| UTF-8 Encoding | 0xF0 0x9D 0x94 0xA3 |
| UTF-16 Encoding | 0xD835 0xDD23 |
| UTF-32 Encoding | 0x0001D523 |
| C/C++/Java Escape | \ud835\udd23 |
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 | "f" U+0066 Latin Small Letter F |
| NFKC Simple Casefold | "f" U+0066 Latin Small Letter F |
| 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 |