¬
Symbol  Format  Data 

¬  Code Point  U+00AC 
TeX  \neg 

SVG 
The negation symbol is used in math to represent the logical negation operator.
The logicaland symbol is used in math as a logical operator.
The logical or symbol is used in logic and mathematics to denote the logical disjunction operation. It's true if at least one of the operands is true.
The exclusive or, or xor, symbol is used in logic and mathematics to denote a logical operation that outputs true only when the number of true inputs is odd.
The negation symbol is used to represent the unary operator for negation, which inverts the value of the expression it is applied to.