Prove or disprove using Truth Tables that a b delta c d delt

Prove or disprove using Truth Tables that (a b) delta (c d) delta = (a delta c) (b delta d)

Solution

For the entry 0110, the value of two expressions will not match with each other, hence the two expressions are not same

A	B	C	D	(AUB) Delta (CUD)	(A Delta C) U (B Delta D)
0	0	0	0	0	0
0	0	0	1	0	0
0	0	1	0	0	0
0	0	1	1	0	0
0	1	0	0	1	1
0	1	0	1	0	0
0	1	1	0	0	1