If A = {1} and B = {{1}, 2} then show that A ⊄ B. Hint 1 ϵ A but 1 ⊄ B.

Question

Philoid · Accepted Answer

There is only one element in set A.

Now, 1 is not an element of B.

Therefore, A ⊄ B.

If A = {1} and B = {{1}, 2} then show that A ⊄ B.Hint 1 ϵ A but 1⊄ B.