Topic 1.2: Example of Set Theory

Example 1,

x = {2, 3, 7, 15, 18}

y = {7, 9, 11, 13, 14}

x n y = 7

x u y = 2, 3, 7, 9, 11, 13, 14, 15, 18

u = {7, 8, 9, 10, 11, 12, 13}


Example 2,

A = {8, 10, 12}

B = {10, 12, 13}

C = {7, 8}

A u B = {8,10, 12, 13}

A n B = {10, 12}