The mathematical expression 2 ∈ V means that:
2 is an element of set V.
We know that for any set A with elements as:
A={a,b,c,d}
We see that that the element a,b,c and d all belongs to the set A and is represented by the symbol:
a ∈ A, b ∈ A , c ∈ A and d ∈ A
i.e. they represent that the element is contained in that set.
Here we 2 ∈ V
This means for a set V of elements.
The element 2 belongs to the set.
i.e. it is a member of the set.
