Or

A term in Logic which yields True if any one of a sequence conditions is True, and False if all conditions are False. $A$ OR $B$ is denoted $A\vert B$, $A+B$, or $A\lor B$. The symbol $\lor$ derives from the first letter of the Latin word ``vel'' meaning ``or.'' The Binary OR operator has the following Truth Table.

$A$	$B$	$A\lor B$
F	F	F
F	T	T
T	F	T
T	T	T

A product of ORs is called a Disjunction and is denoted

$$\bigvee_{k=1}^n A_k.$$

Two Binary numbers can have the operation OR performed bitwise. This operation is sometimes denoted $A\vert\vert B$.

See also And, Binary Operator, Logic, Not, Predicate, Truth Table, Union, XOR