I know the answer is true, but how do I go about writing the formal mathematical proof for this?
2006-11-12 21:14:03 · 3 answers · asked by Cascade Ranger 3 in Science & Mathematics ➔ Mathematics
if B' is subset of A' then
if x belongs to B' then x belongs to A'
if x belongs to A then x cannot belong to B' because if x belongs to B' then it belongs to A then x belongs to A and A'
so if x belongs to A the x belongs to B(as it does not belong to B')
so A is subset of B
2006-11-12 21:21:53 · answer #1 · answered by Mein Hoon Na 7 · 0⤊ 0⤋
take an element x from one of the sets and detail x, you'll end up with equality, which is what I think the second answerer has given.
2006-11-13 05:37:35 · answer #2 · answered by yasiru89 6 · 0⤊ 0⤋
no no... do your own homework kiddo
2006-11-13 05:15:57 · answer #3 · answered by Gia 3 · 0⤊ 0⤋