A binary operation * over real numbers is said to be associative if (x * y) * z = x * (y * z) and it is said to be reducible if x * y = x * z or y * w = z * w if and ...

Nonbinary is a term that describes someone who does not identify exclusively as a man or a woman. Instead, a nonbinary person may define their gender identity and experience outside of these binary ...

Starting July 21, 2021, Argentina’s National Identity Document and passports now include a third gender category, “X,” allowing people to choose to be designated other than female or male. The move ...