Determining If An Element Is Part Of A Set

[Bashyboy]

The question is, "determine whether 2 is a set of the following," the set being
{x∈R|x is the square of an integer}

I think I might need a bit of help interpreting the meaning; I believe its saying that if you square some number, you'll get x, right? I just need a little help reading this.

 

[szynkasz]

You are right.

 

[Bashyboy]

Thank you.