Determine whether these statements are true or false

[Dhanalakshmi]

Determine whether these statements are true or false.

a) ∅ ∈ {∅}
b) ∅ ∈ {∅, {∅}}
c) {∅} ∈ {∅}
d) {∅} ∈ {{∅}}
e) {∅} ⊂ {∅, {∅}}
f) {{∅}} ⊂ {∅, {∅}}
g) {{∅}} ⊂ {{∅}, {∅}}