Union With Minus Sign Symbol
⩁ denotes a union operation combined with subtraction in formal set-like notation.
U+2A41
The symbol ⩁ is called UNION WITH MINUS SIGN (U+2A41). It’s commonly used to express a union-style combination where part of the result is removed. Below you’ll find meanings, copy options, and example text.
Union With Minus Sign Symbol Meaning
⩁, named UNION WITH MINUS SIGN, is a mathematical character used to describe a combined operation of union together with a subtraction-like effect. In many contexts it visually communicates “union, then remove” or “union with a minus component,” similar in spirit to set differences shown in compact notation. Writers and developers use it when they want a single glyph to represent a specific composite operation rather than writing longer phrases. Because notation styles vary across communities, it’s best to include brief explanation in teaching materials or documents if your audience may not recognize the exact convention you’re using.
Common uses
- •Express composite set operations in math notes and problem statements.
- •Annotate diagrams or worksheet steps where an inclusion is adjusted by removal.
- •Label transitions in formal logic or algorithm pseudocode descriptions.
- •Provide compact notation in technical writing and documentation.
- •Use as a typographic symbol in educational slides or textbooks.
Examples
⩁ Union with Minus Sign
- ⩁A ⩁ B represents a union-with-minus composite operation.
- ⩁Compute X ⩁ Y by combining sets and excluding the minus part.
- ⩁The result of (S ⩁ T) differs from a plain union S ∪ T.
- ⩁In the sequence, we apply ⩁ to update the current set.
- ⩁Refer to ⩁ when indicating a union that removes a subset.
Variations
Ready to copy
Technical codes
| Unicode | U+2A41 | |
| HTML Entity | ⩁ | |
| HTML Code | ⩁ | |
| CSS | \2A41 | |
| Alt Code | Alt + 10817 | |
| Decimal | 10817 |
How to type Union With Minus Sign Symbol (⩁)
On Windows
Hold Alt and type 10817 on the numeric keypad. In Word, type 2A41 then press Alt + X.
On Mac
Switch to the Unicode Hex Input keyboard, then hold Option and type 2A41. Or press Control + Command + Space and search.
On Linux
Press Control + Shift + U, type 2a41, then press Enter or Space.
Anywhere
Copy ⩁ 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 is the official name of ⩁?
The Unicode name is UNION WITH MINUS SIGN.
What is the Unicode code point for ⩁?
The code point is U+2A41.
How can I copy ⩁ in HTML?
You can use the HTML entity: ⩁.
What does ⩁ mean in math notation?
It’s used to indicate a union-style operation combined with a subtraction-like (“minus”) component; exact interpretation can depend on the notation convention in your document.