Question

7. [2 marks] Let A {1, {0}}. Find P(A).

Answer 1

Looks like
`A` is the set
`\{1,\{0\}\}`, and you want to find the power set of
`A`,
`\mathcal P(A)`.
`A` contains only 2 elements, so we expect
`2^2=4` elements in the power set:

`\mathcal P(A)=\{\{\},\{1\},\{\{0\}\},\{1,\{0\}\}\}`