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Mathematics
Mathematics
Problem
4. Write down all the subsets of the following sets (i)
{
a
}
\{a\}
{
a
}
(ii)
{
a
,
b
}
\{a, b\}
{
a
,
b
}
(iii)
{
1
,
2
,
3
}
\{1,2,3\}
{
1
,
2
,
3
}
(iv)
ϕ
\phi
ϕ
(i)
a
{a}
a
(ii)
a
,
b
{a, b}
a
,
b
(iii)
1
,
2
,
3
{1,2,3}
1
,
2
,
3
(iv)
ϕ
\phi
ϕ
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