Mathematical Double-struck Small Y Symbol
𝕪 is the mathematical double-struck small letter Y used in specialized notation.
U+1D56A
The symbol 𝕪 is a Unicode character named MATHEMATICAL DOUBLE-STRUCK SMALL Y. It’s commonly used where double-struck lettering is part of mathematical typesetting. You can copy it directly or insert it using its Unicode/HTML forms.
Mathematical Double-struck Small Y Symbol Meaning
𝕪 (MATHEMATICAL DOUBLE-STRUCK SMALL Y, U+1D56A) is a “double-struck” (blackboard bold–style) lowercase y. In mathematical writing, double-struck letters are often chosen to distinguish specific objects or sets from ordinary variables. The exact convention depends on the author or field—for example, a paper may reserve double-struck letters for particular number sets, algebraic structures, or named quantities. When used in documents or design mockups, the key is consistent typography and clear meaning in the surrounding notation. Always ensure the font you use supports this character, especially in web and design tools.
Common uses
- •Typing specialized mathematical notation that requires double-struck lowercase y
- •Labeling sets, spaces, or variables in academic documents and papers
- •Using consistent symbol styling in math-heavy reports and presentations
- •Designing posters or slides with mathematical callouts and variables
- •Including the character in web text or UI strings that support Unicode math symbols
Examples
𝕪 — Mathematical Double-Struck Small Y
- 𝕪Let 𝕪 be a set of points in the plane.
- 𝕪We define 𝕪 as the image of the mapping.
- 𝕪The function maps elements of 𝕪 to 𝕫.
- 𝕪For all y ∈ 𝕪, the following holds.
- 𝕪Assume 𝕪 is nonempty and closed under the operation.
Variations
Ready to copy
Technical codes
| Unicode | U+1D56A | |
| HTML Entity | 𝕪 | |
| HTML Code | 𝕪 | |
| CSS | \1D56A | |
| Decimal | 120170 |
How to type Mathematical Double-struck Small Y Symbol (𝕪)
On Windows
In Word, type 1D56A then press Alt + X. Or open the emoji picker with Windows key + period.
On Mac
Press Control + Command + Space to open Character Viewer and search for the character.
On Linux
Press Control + Shift + U, type 1d56a, then press Enter or Space.
Anywhere
Copy 𝕪 with the button above and paste it wherever you need it — this works on every device and in every app, with no keyboard shortcut to remember.
FAQ
What does the Mathematical Double-struck Small Y symbol mean?
𝕪 (MATHEMATICAL DOUBLE-STRUCK SMALL Y, U+1D56A) is a “double-struck” (blackboard bold–style) lowercase y. In mathematical writing, double-struck letters are often chosen to distinguish specific objects or sets from ordinary variables. The exact convention depends on the author or field—for example, a paper may reserve double-struck letters for particular number sets, algebraic structures, or named quantities. When used in documents or design mockups, the key is consistent typography and clear meaning in the surrounding notation. Always ensure the font you use supports this character, especially in web and design tools.
What is the Unicode code point for 𝕪?
𝕪 is U+1D56A (MATHEMATICAL DOUBLE-STRUCK SMALL Y).
How can I copy 𝕪 into HTML?
Use the HTML entity: 𝕪
How do I insert 𝕪 using JavaScript?
You can use: \\u{1D56A}.
Why does 𝕪 sometimes show as a blank box?
Some fonts or systems may not support this character. Try a Unicode-capable font that includes MATHEMATICAL DOUBLE-STRUCK glyphs.