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I've got two sets of questions here both requiring proofs.

Here is a little progress I made with Question Two part c)

f=({a,1},{b,1},{c,2},{d,2}) , A={a,c} & B={b,d}

f(A)/f(B) = emptyset & f(A/B)={1,2}

Any help with the other two parts to Question Two/Three would be great.

Many Thanks,

The Maths Dude

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# Proof Questions!

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