Hey guys, I am working on this proof which I initially thought was true, but found a contradiction while working through it, so I am pretty sure that the statement is false.

However, if its false, I need to find an example for which its false and that is what I am having trouble with. I just cant seem to pick the right numbers.

Statement:

For all sets A, B, C (A-B) U (B-C) = (AUB) - (B (intersect) C)

Haha sorry, I dont know how to make an upside down U, so I just wrote intersect.

Also, is there any method to picking sets that give you a counter example? or is it just blind guessing?