. . . . "an operator that leaves unchanged the element on which it operates; \"the identity under numerical multiplication is 1\""@en-us . "identity"@en-us . "0"^^ . "identity element"@en-us . "113009037"@en-us . . . . "0"^^ . . "13786748-n"^^ . . "identity operator"@en-us . . . . . . "an operator that leaves unchanged the element on which it operates; \"the identity under numerical multiplication is 1\""@en-us . "113786748"^^ . "identity"^^ .