Not Equivalent To Symbol
≭ indicates that two expressions or statements are not equivalent.
U+226D
“≭” is a mathematical comparison symbol for “not equivalent to.” It’s commonly used in formal writing where equivalence must be denied. You can copy it directly or use its Unicode code point U+226D.
Not Equivalent To Symbol Meaning
The symbol “≭” (Unicode U+226D, HTML entity ≭) stands for “not equivalent to.” In math and logic contexts, it’s used to state that two expressions, sets, or propositions cannot be treated as equivalent under the relevant definition. For example, one side may differ in value, structure, or transformation rules, making equivalence invalid. Visually, it’s closely related to equivalence notation, but it explicitly negates that relationship. When formatting equations, pairing it with equality-like statements helps readers quickly understand the intended comparison and the contrast with “equivalent to” (not negated).
Common uses
- •Stating in equations that two expressions are not equivalent
- •Writing logic or proofs where one statement does not match another
- •Annotating conditions in technical documents (e.g., model assumptions) as non-equivalent
- •Indicating that two sets or relations do not correspond under a defined mapping
- •Labeling comparisons in math education materials and worksheets
Examples
≭ Not Equivalent To (U+226D)
- ≭f(x) ≭ g(x) for x ≠ 0
- ≭A ≭ B under this equivalence relation
- ≭P ≭ Q because they evaluate differently
- ≭The two forms are not equivalent: E1 ≭ E2
- ≭x ≭ y when the constraints are applied
Variations
Ready to copy
Technical codes
| Unicode | U+226D | |
| HTML Entity | ≭ | |
| HTML Code | ≭ | |
| CSS | \226D | |
| Alt Code | Alt + 8813 | |
| Decimal | 8813 |
How to type Not Equivalent To Symbol (≭)
On Windows
Hold Alt and type 8813 on the numeric keypad. In Word, type 226D then press Alt + X.
On Mac
Switch to the Unicode Hex Input keyboard, then hold Option and type 226D. Or press Control + Command + Space and search.
On Linux
Press Control + Shift + U, type 226d, 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 does ≭ mean?
≭ means “not equivalent to,” indicating two expressions or statements are not equivalent.
What is the Unicode for ≭?
The symbol ≭ has Unicode code point U+226D.
How do I type ≭ in HTML?
Use the HTML entity: ≭
Is ≭ the same as ≠ (not equal to)?
No. ≠ means “not equal,” while ≭ specifically denotes “not equivalent to” under an equivalence concept.