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U+2247, ≇
NEITHER APPROXIMATELY NOR ACTUALLY EQUAL TO
Composition: [U+2245] + ◌̸ [U+0338]

[U+2246]
Mathematical Operators
[U+2248]

Translingual

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Symbol

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  1. (mathematics) Neither approximately nor actually equal to.
  2. (geometry) Not congruent to.
    • 2021, Barbara E. Reynolds, William E. Fenton, College Geometry with GeoGebra (in English), John Wiley & Sons, →ISBN, page 77:
      Assume that ΔABC ΔDEF. Then a pair of corresponding angles, say A and D, is not congruent.
  3. (mathematics) Not isomorphic to.
    • 2015, Vladimir Lepetic, Principles of Mathematics: A Primer (in English), John Wiley & Sons, →ISBN, page 399:
      Similarly, if one can prove that there is no one-to-one correspondence between the groups, manifestly they are not isomorphic. For instance, each group of fourth order is either isomorphic to the Klein group V or to the group of square rotation R4, while V R4.