Answer to Question #308061 in Math for Abc

Question

Determine whether these statements are true or false.

a) ∅ ∈ {∅} b) ∅ ∈ {∅, {∅}}

c) {∅} ∈ {∅} d) {∅} ∈ {{∅}}

e) {∅} ⊂ {∅, {∅}} f ) {{∅}} ⊂ {∅, {∅}}

g) {{∅}} ⊂ {{∅}, {∅}}