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𝔹

Mathematical Double-struck Capital B Symbol

𝔹 is a mathematical double-struck capital B used to distinguish special sets, constants, or objects.

U+1D539

𝔹 (U+1D539) is a Unicode math symbol: MATHEMATICAL DOUBLE-STRUCK CAPITAL B. It’s often used in mathematical notation where double-struck letters carry a specific meaning. Use it anywhere you need a styled, standards-based β€œB” character.

Mathematical Double-struck Capital B Symbol Meaning

𝔹 is the Unicode character named MATHEMATICAL DOUBLE-STRUCK CAPITAL B (U+1D539). In mathematics, double-struck letters commonly indicate a specific kind of set or number system (for example, variants used for number systems or standard algebraic objects), distinct from a regular italic or bold β€œB”. The exact interpretation depends on the surrounding notation in a document or worksheet. As a typographic symbol, it also helps visually signal that the β€œB” is intended to represent a particular mathematical entity rather than a generic variable.

Common uses

  • β€’Writing math expressions where a special β€œB” set/object must be clearly distinguished
  • β€’Labeling in academic notes, lecture slides, and homework where β€œB” needs double-struck styling
  • β€’Typesetting character placeholders in documentation or textbook-style examples
  • β€’Designing math-themed graphics or UI elements that reference specific mathematical notation
  • β€’Embedding in software-generated math text where a dedicated Unicode character is preferred over styling

Examples

𝔹 β€” Mathematical Double-Struck Capital B

  • 𝔹Let 𝔹 be a collection of subsets.
  • 𝔹Assume 𝔹 βŠ† 𝒫(X).
  • 𝔹We denote the space by 𝔹 and study its properties.
  • 𝔹For objects in 𝔹, the following condition holds.
  • 𝔹Define a map from 𝔹 to another structure.

Variations

Ready to copy

Technical codes

UnicodeU+1D539
HTML Entity𝔹
HTML Code𝔹
CSS\1D539

FAQ

What does the Mathematical Double-struck Capital B symbol mean?

𝔹 is the Unicode character named MATHEMATICAL DOUBLE-STRUCK CAPITAL B (U+1D539). In mathematics, double-struck letters commonly indicate a specific kind of set or number system (for example, variants used for number systems or standard algebraic objects), distinct from a regular italic or bold β€œB”. The exact interpretation depends on the surrounding notation in a document or worksheet. As a typographic symbol, it also helps visually signal that the β€œB” is intended to represent a particular mathematical entity rather than a generic variable.

What Unicode character is 𝔹?

𝔹 is MATHEMATICAL DOUBLE-STRUCK CAPITAL B, Unicode code point U+1D539.

How do I copy 𝔹 correctly in HTML?

You can use the HTML entity: 𝔹.

What CSS escape or JavaScript escape can I use?

CSS escape: \\1D539. JavaScript (Unicode code point escape): \\u{1D539}.

Does 𝔹 always mean the same thing in math?

Not alwaysβ€”its exact meaning depends on the context and notation being used. It primarily signals a special double-struck β€œB” entity.