Or

e1 || e2 || ... is the logical OR function. It gives True immediately if any argument is True, and False if all are False.

Examples

Logical OR:

True || False
(* True *)

False || False
(* False *)

With conditions:

x = 15;
x < 0 || x > 10
(* True *)

Please visit the official Wolfram Language Reference for more details.