Question

A = {∅ ,{∅ },2,{2,∅ },3}, which of the following is true?

a) {{∅ ,{∅ }} ∈ A b) {2} ∈ A c) ∅ ⊂ A d) 3 ⊂ A​

Answer 1

Answer:

C

Step-by-step explanation:

pie is subset to any set

Answer 2

Answer:

The correct answer is option A which is a) {{∅ ,{∅ }} ∈. A = {∅ ,{∅ },2,{2,∅ },3}, It is valid for specific reasons.

Step-by-step explanation:

a) is true. The set {∅ ,{∅ }} is an element of A because it is listed as an element in the definition of A.

b) is false. The set {2} is not an element of A because it is not listed as an element in the definition of A.

c) is false. The empty set, ∅, is a subset of any set because it contains no elements, so all of its elements are also elements of any other set.

d) is false. 3 is not a subset of A because it is not a set. 3 is an integer, not a group.

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