http://common.replayers.com/temp/maths1.JPG

Hi guys!

Any help with the above problem would be really greatly appreciated.

Many thanks in advance,

TheMathsDude

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- Jan 15th 2008, 11:27 AMTheMathsDudeProof Question
http://common.replayers.com/temp/maths1.JPG

Hi guys!

Any help with the above problem would be really greatly appreciated.

Many thanks in advance,

**TheMathsDude** - Jan 15th 2008, 12:30 PMPlato
Here is an example for part c.

$\displaystyle f = \left\{ {\left( {a,1} \right),\left( {b,1} \right),\left( {c,2} \right),\left( {d,2} \right)} \right\},\,A = \{ a,c\} \,\& \,B = \{ b,d\} $

$\displaystyle f\left( A \right)\backslash f\left( B \right) = \emptyset \,\& \,f\left( {A\backslash B} \right) = \left\{ {1,2} \right\}

$ - Jan 15th 2008, 02:17 PMTheMathsDude
Thanks for the help Plato.

Any other help with the other parts would be very helpful!

Many Thanks. - Jan 15th 2008, 02:44 PMPlato