EXAMPLE1 80t8 集合 The set v of all vowels in the english alphabet can written as --- V=a, e, i, 0, u. 2/24/202111:15PM Deren Chen Zhejiang univS e t s 集合 2/24/2021 11:15 PM Deren Chen, Zhejiang Univ. 4 EXAMPLE 1 The set V of all vowels in the English alphabet can written as ---- V = {a, e, i, o, u}