Question

Examine whether the following statements are true or false:
(i) {
a
,
b
}
⊄
{
b
,
c, a
}
(ii) {
a
,
e
}
⊂
{
x
:
x
is a vowel in the English alphabet}
(iii) { 1, 2, 3 }
⊂
{
1,
3
,
5 }
(iv) {
a
}
⊂
{
a
,
b, c
}
(v) {
a
}
∈
{
a
,
b, c
}
(vi) {
x
:
x
is an even natural number less than 6}
⊂
{
x
:
x
is a natural number
which divides 36}