∾
Jump to navigation
Jump to search
See also: Appendix:Variations of "="
|
Translingual[edit]
Description[edit]
An inverted lazy S.
Symbol[edit]
∾
- (mathematics) logical negation[1]
Usage notes[edit]
Resembles manuscript variants of the infinity sign, ∞ (e.g. in Euler's notebooks).
References[edit]
- ^ Kurt Gödel, "Über formal unentscheidbare Sätze der Principia Mathematica und verwandter Systeme I" (1931), DOI 10.1007/BF01700692, page 177