Question

solve this with explaination​

Answer 1

Answer:

The answer is false.

Step-by-step explanation:

Lets say that a set A has 1 element. A= {a}

And B has 2 elements.

B={{a},b}

and another set C has 3 elements {b,c,d}

So, A ∈ B and B⊂C but A⊄C.