Yikes...help please if you can:
1. Prove B-(A U B)=0 Note "0" here is the empty set
2. Prove if A Intersect B =A, then A is a subset of B Note: This is not to be proven by Algebra of Sets, rather treated as a proof of a biconditional proposition.
Last edited by IIuvsnshine; Nov 18th 2007 at 03:09 AM.
Reason: changing the 2nd problem