In fact, is not only a subset, but is equal to (by definition).
To get a better intuition, consider an example, such as iff is even ( are integers), or iff ( are sets). Take a pair from and see if . Do this several times and then try to have a different outcome for whether .
In fact, is not only a subset, but is equal to (by definition).
To get a better intuition, consider an example, such as iff is even ( are integers), or iff ( are sets). Take a pair from and see if . Do this several times and then try to have a different outcome for whether .
I'm afraid that didn't really help me. Would it be possible for you to show me?