✦free-symbols
𝕫

Mathematical Double-struck Small Z Symbol

𝕫 is the double-struck lowercase z used in mathematical notation.

U+1D56B

This page helps you copy the symbol 𝕫 and use it correctly in text, documents, and code. It is Unicode character U+1D56B with HTML entity 𝕫. If you need a consistent math-style β€œz”, this is the character to use.

Mathematical Double-struck Small Z Symbol Meaning

𝕫 (MATHEMATICAL DOUBLE-STRUCK SMALL Z, U+1D56B) is a Unicode math symbol styled as a double-struck lowercase β€œz”. In practice, it’s most often used as a typographic variant of β€œz” to indicate a mathematical set or object in notation (commonly alongside other double-struck characters like 𝕣, 𝕗, or π•Ÿ). Because it is a distinct Unicode character, using 𝕫 (not a plain β€œz” in a bold/double style) preserves consistent semantics and ensures correct rendering when fonts support it.

Common uses

  • β€’Mathematical writing that requires a double-struck lowercase z in set or symbol notation
  • β€’Typing consistent identifiers in research notes, theses, and homework solutions
  • β€’Designing math-themed headings, posters, or infographics with a β€œmath blackboard” look
  • β€’Labeling variables in code documentation or pseudocode that uses formal math symbols
  • β€’Creating social or educational content that needs a specific math glyph beyond plain text z

Examples

𝕫 β€” Mathematical Double-Struck Small Z

  • 𝕫Let 𝕫 denote the set of integers.
  • 𝕫Define the function f: 𝕫 β†’ 𝕫.
  • 𝕫For x ∈ 𝕫, we have x + 1 ∈ 𝕫.
  • 𝕫Choose a sequence indexed by n ∈ 𝕫.
  • 𝕫Consider 𝕫 under addition and multiplication.

Variations

Ready to copy

Technical codes

UnicodeU+1D56B
HTML Entity𝕫
HTML Code𝕫
CSS\1D56B

FAQ

What does the Mathematical Double-struck Small Z symbol mean?

𝕫 (MATHEMATICAL DOUBLE-STRUCK SMALL Z, U+1D56B) is a Unicode math symbol styled as a double-struck lowercase β€œz”. In practice, it’s most often used as a typographic variant of β€œz” to indicate a mathematical set or object in notation (commonly alongside other double-struck characters like 𝕣, 𝕗, or π•Ÿ). Because it is a distinct Unicode character, using 𝕫 (not a plain β€œz” in a bold/double style) preserves consistent semantics and ensures correct rendering when fonts support it.

Is 𝕫 different from a normal lowercase z?

Yes. 𝕫 is a distinct Unicode character (U+1D56B) with a double-struck math style, while β€œz” is plain lowercase text.

What is the Unicode code point for 𝕫?

𝕫 is Unicode code point U+1D56B.

How can I copy 𝕫 into HTML?

Use the HTML entity: 𝕫.

What if 𝕫 doesn’t display correctly on my device?

Rendering depends on font support for the character. Try using a Unicode math-capable font or ensure the text is encoded as Unicode (UTF-8).