⊊
Unicode
U+228ALaTeX
\subsetneqHTML entity
⊊HTML decimal
⊊MathML
<mo>⊊</mo>Semantic identity and intent
Characters to distinguish
- ⊊ — Proper Subset Of
Use ⊊ in the right format
Meaning and usage
Marks a strict subset while explicitly excluding equality.
Use it when every element of A belongs to B and at least one element of B is absent from A.
Pronunciation: subset of with not equal to
Formula examples
A⊊BHow to type Subset Of with Not Equal To
- Windows
- Use Character Map or enter U+228A in a Unicode-aware application.
- macOS
- Open Character Viewer with Control–Command–Space and search by the symbol name.
- Microsoft Word
- In an equation, type \subsetneq and press Space when Word supports the command.
- iPhone and iPad
- Copy and paste ⊊, or use a math/LaTeX app. The standard iOS keyboard may not expose every mathematical symbol.
- Android
- Copy and paste ⊊, or use a math keyboard or LaTeX editor. Keyboard layouts vary by device and app.
- Google Docs
- For plain text, paste ⊊ or use Insert → Special characters. For structured math, use the equation editor and verify \subsetneq.
- Excel
- Paste ⊊ into a cell or use Insert → Symbol when available. Ordinary cells preserve the character but do not interpret LaTeX commands.
Common mistakes
- Use ⊊ to deny equality, not to express an ordering such as less than or greater than.
- For plain text, copy ⊊ as U+228A; for structured equations, use \subsetneq in math mode. A look-alike glyph or image can break search, accessibility, or parsing when the intended character is Subset Of with Not Equal To.
When to use ⊊
- Use ⊊ in plain text when a Unicode character is appropriate and the destination preserves U+228A.
- Use \subsetneq in an equation editor when mathematical spacing or structure matters.
- Define the local meaning when Subset Of with Not Equal To is used in set theory with a field-specific convention.
Look-alikes and related characters
- ⊊ — Proper Subset Of
Font and compatibility notes
Font coverage varies; verify the code point and destination rendering before publication.
Continue the workflow
From Subset Of with Not Equal To to a finished equation
- Copy the characterUse ⊊ in plain text when Unicode is accepted.
- Choose a structured formatUse
\subsetneqfor LaTeX or the MathML snippet for accessible web equations. - Edit or convertOpen the value in the editor or converter without retyping it.
Review and source notes
Quality tier: catalog
Last reviewed: 2026-07-23
Review method: Catalog review of character identity and notation mappings.
Verified against: Unicode Standard, Unicode mathematical notation guidance, and established LaTeX/MathML syntax.
Reference sources
- The Unicode StandardUnicode Consortium — Character identity, encoding, names, and conformance.
- Unicode Character Code ChartsUnicode Consortium — Code points and official character charts.
Frequently asked questions
What does the Subset Of with Not Equal To symbol mean?
Marks a strict subset while explicitly excluding equality.
What is the LaTeX command for ⊊?
Use \subsetneq in a compatible math environment.
Can I copy ⊊ as Unicode?
Yes. Use the copy button above to copy the Unicode character directly.