Turned E (∃) is a symbol based upon the letter E. It used to represent existential quantification in predicate logic. When it appears in a formula together with a predicate variable, they are referred to as an existential quantifier.
In Unicode the symbol is encoded U+2203 ∃ there exists (HTML
There also exists a Latin script letter U+018E Ǝ latin capital letter reversed e (HTML
Ǝ) used in some African languages.
- Transformation of text
- Existential quantification
- List of mathematical symbols
- List of logic symbols