4 ms·
It's much simpler than that. X is in B therefore X is not in A is what being said, and this statement simply doesn't make sense unless you have a separate proof
by lostmsu 1y ago
It's much simpler than that. X is in B therefore X is not in A is what being said, and this statement simply doesn't make sense unless you have a separate proof that A and B don't intersect.