Question

Give example of three sets A,B,C for which A-(B-C)=(A-B)-C ​

Answer 1

Answer:

(B-C)={a,b,c,d,}-C{e ,g,d,f}

(B-C)={a,b,c}

A-(B-C)={a,b,c,d,e,f,,g}-{a,b,c}

A- ( B- C)= {d,e,f,g,}

(A-B)={.a,b,c,d,e,f,g, }- B{a,b,c,d,}

(A- B)={e,f,g, }

(A-B)-C={e,g,f,} -{e,g,d,f}

(A-B)-C={d}

A-(B-C)is not equal to

(A-B)-C