Question

Which of the following postulates states that a quantity must be equal to itself?

symmetric
identity
reflexive
closure

Answer 1

The best answer would be C. reflexive

Answer 2

The reflexive property of equality states that a quantity must be equal to itself. The correct option is C. This postulate futher states that all same real numbers are equal, for example; 5 = 5. The reflexive property of equality works to remove ambiguity from mathematical statements.