Question

A = {1, 2, {3, 4}, 5}
Then {$\phi$} $\subset$ A ? Why? Or why not?

Class-11
Set

Answer 1

Answer:

No

Step-by-step explanation:

A⊂B = A is a subset of B, that is elements of set A thats found in set B

{∅} = empty set, which is when there's no elements in a set, { }

the question is {∅}⊂A, so literally it is asking if an empty set is a subset of set A

From our set we can see that there is a set present in set A which is {3,4} and this isnt an empty

so our answer is , no {∅}⊄A , where ⊄ stands for 'not a subset'

I hope you understand it

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