Theorem 3 (If A and B are two non empty set; then prove that `AxxB=BxxAhArr A=B`

If Aa n dB are any two non-empty sets, then prove that: AxxB=BxxA A=Bdot

Let A and B be two non empty sets, then show that AxxB=BxxA . If A=B

If A and B are any two non-empty sets, then prove that: AxxB=BxxA ' implies A=Bdot

If A and B are two non empty sets then AUB=A nn B iff

If A and B are non-empty sets such that A sup B, then

A and B are two non empty set having n element in common ; then prove that AxxB and BxxA have n^2 element in common.

Theorem 10(Let A and B be non empty set such that A xx B=A xx C. Show that B=C

Theorem 9(A and B are two non empty set having n element in common; then prove that A xx B and B xx A have n^(2) element in common.)

If A and B are non empty sets,then (A-B)uu(B-A) equals

If A and B are two non-empty sets, then (A-B)cup(B-A) is equal to: