Define equality of two sets A and B.

Applying the axiom of equality of two sets prove the identiti for any two sets A and B. B uu (A-B) = A uu B .

Applying the axiom of equality of two sets prove the identiti for any two sets A and B. A uu (A uu B)=A uu B

Applying the axiom of equality of two sets prove the identiti for any two sets A and B. A' - B = A' nn B'

Applying the axiom of equality of two sets prove the identiti for any two sets A and B. A-B=B'-A'

Applying the axiom of equality of two sets prove the identiti for any two sets A and B. A uu (A' nn B) = A uu B

Applying the axiom of equality of two sets prove the identiti for any two sets A and B. A nn (A' uu B) = A nn B

Applying the axiom of equality of two sets prove the identiti for any two sets A and B. A-B'=A nn B

Applying the axiom of equality of two sets prove the identiti for any two sets A and B. (A uu B)-A=B-A

Applying the axiom of equality of two sets prove the identiti for any two sets A and B. A uu (B-A)= A uu B

Applying the axiom of equality of two sets prove the identiti for any two sets A and B. A nn (A uu B) = A