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U+228A · Subset of with Not Equal To · Mathematical Operators · Common

Subset of with Not Equal To ⊊

(U+228A) is a standard Unicode character that you can copy and paste anywhere text is accepted. This page provides a concise reference with safe tips, internal links, and practical guidance so you can use it reliably across apps and platforms.

What it is and where it’s used: Subset of with Not Equal To is part of the Symbols family (block: Mathematical Operators). If you need styled or decorative alternatives, try our Fancy Text tool to generate compatible text that works in most modern interfaces.

History & usage: The symbol SUBSET OF WITH NOT EQUAL TO has the code point U+228A and sits in the Mathematical Operators block. In history, it has been used to compare sets and relations in mathematical text. It also appears in digital math tools and interfaces where users input formulas. The symbol combines two ideas: subset equality and inequality. It shows that one set is contained in another, but the relation is not exact. This helps clarify how parts relate to whole in a formal way. In today’s software, the symbol is used in formulas, equation editors, and educational materials. It communicates a clear relation for students and professionals. The usage is common across many regions and languages that support standard math notation. In practice, writers choose this symbol when they need to express a subset relation that is not equal. It helps avoid longer phrases and keeps expressions compact. The symbol remains a reliable part of mathematical syntax for both theory and user interfaces. In the right context, it improves clarity and precision in formulas and calculations.

Copy and input: the quickest method is to copy the character here. You can also insert it by its codepoint U+228A in many development tools or editors. Some operating systems provide a character viewer or input palette that lets you search by name or code and insert the glyph into documents.

Display and fallback: if you see an empty box (tofu) or a placeholder rectangle, the active font might not include this codepoint. Switching to a font with broader Unicode coverage or using a fallback font usually fixes the issue. On the web, ensure the page’s font stack includes a general‑purpose fallback.

Related references: browse the Categories for similar characters. When choosing a symbol, prefer the official codepoint for semantic clarity and better compatibility with search, copy, and accessibility tooling.

See our category page for related symbols.

Technical details
  • Codepoint: U+228A
  • General Category: Sm
  • Age: 1.1
  • Bidi Class: ON
  • Block: Mathematical Operators
  • Script: Common
  • UTF-8: E2 8A 8A
  • UTF-16: 228A
  • UTF-32: 0000228A
  • HTML dec: ⊊
  • HTML hex: ⊊
  • JS escape: \u228A
  • Python \N{}: \N{SUBSET OF WITH NOT EQUAL TO}
  • Python \u: \u228A
  • Python \U: \U0000228A
  • URL-encoded: %E2%8A%8A
  • CSS escape: \228A
How to type / insert

Fast copy: click the Copy button near the top of this page.

By codepoint: in many editors and IDEs, you can insert via the Unicode code U+228A or a built‑in character picker.

HTML: use the numeric entity ⊊ (hex) or ⊊ (decimal) when an HTML entity is needed.

Compatibility & troubleshooting

Font support: if the symbol does not render, the current font likely lacks this codepoint. Choose a font with broad Unicode coverage or allow a fallback font.

Web pages: ensure your CSS font stack includes a general fallback; avoid relying on images for common symbols to preserve accessibility and copyability.