Question

I Don´t Know if is Ø a subset of Ø?

Answer 1

`\emptyset` is a subset of `\emptyset`

Explanation:

If set `A` is a subset of set `B`, then all elements in `A` are in `B`.

If `B` is an empty set, then it contains no elements. If `A` is the empty set, then it contains no elements. Because there are no elements in `A` that are not in `B`, `A` is a subset of `B`.

Hence, `\emptyset` is a subset of `\emptyset`.