Generalized Unions of Sets Example(1) AUB=A,B} Proof? Example (2) LetS(i)=[i,i+1]andI={U2Ij∈[1,3]}，then US(i)={1,2,4,5,9,10} iel 1/40Generalized Unions of Sets Example (1) A ∪ B = [ {A, B} Proof? Example (2) Let S(i) = [i, i + 1] and I = {j 2 | j ∈ [1, 3]}, then [ i∈I S(i) = {1, 2, 4, 5, 9, 10} 7 / 40