U+1D565 "𝕥" Mathematical Double-Struck Small T Unicode Character
Unicode Version 17.0
𝕥
U+1D565 "𝕥" Mathematical Double-Struck Small T is a typographic symbol from the Mathematical Alphanumeric Symbols block, designed to represent a lowercase letter T in a double-struck or blackboard bold style. This style, characterized by thickened, often hollow strokes, is commonly used in mathematics and logic to denote specific sets, variables, or objects, such as a topological space or a vector in advanced notation. Its inclusion in Unicode allows for consistent representation across digital platforms, enabling precise symbolic communication in academic and technical documents without reliance on specialized fonts.
General Properties
| Code Point | U+1D565 |
| Version Added | 3.1 |
| Name | Mathematical Double-Struck Small T |
| Block | Mathematical Alphanumeric Symbols |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Font |
| Decomposition Mapping | "t" U+0074 Latin Small Letter T |
Encodings
| HTML Decimal Encoding | 𝕥 |
| HTML Hex Encoding | 𝕥 |
| UTF-8 Encoding | 0xF0 0x9D 0x95 0xA5 |
| UTF-16 Encoding | 0xD835 0xDD65 |
| UTF-32 Encoding | 0x0001D565 |
| C/C++/Java Escape | \ud835\udd65 |
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 | "t" U+0074 Latin Small Letter T |
| NFKC Simple Casefold | "t" U+0074 Latin Small Letter T |
| 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 |