mathematics
2006-09-04 12:40:19 · 2 answers · asked by thamal3 1 in Science & Mathematics ➔ Mathematics
A intersects (B U C)=(A intersectsB) U (A intersects C)
Proof:
let x belong to A intersects (B U C). Then x belongs to A and one of B or C, thus x must belong to either (A intersectsB) or (A intersects C) and therefore belongs to (A intersectsB) U (A intersects C).
let x belong to (A intersectsB) U (A intersects C). then x belongs to A and B, or A and C. thus x must be in A, and either B or C. Therefore x belongs to A and B U C. Hence x belongs to A intersects (B U C).
QED
2006-09-04 12:46:39 · answer #1 · answered by a_liberal_economist 3 · 0⤊ 1⤋
are you serious??????
how about at least a sketch dude, what are we working with here?????????
2006-09-04 19:45:43 · answer #2 · answered by punkrockprincess 4 · 0⤊ 1⤋