Axiom:Ring of Sets Axioms

Definition
Let $\RR$ be a system of sets.

Axioms 1
$\RR$ satisfies the ring of sets axioms :

Axioms 2
$\RR$ satisfies the ring of sets axioms :

Axioms 3
$\RR$ satisfies the ring of sets axioms :

Also see

 * Definition:Ring of Sets