He looks super serious, too! This is what I found about Q with a line over it. "Usually a line over a symbol for a set means the complement of the set. In this case the complement of Q is the set of all irrationals."
He looks super serious, too! This is what I found about Q with a line over it. "Usually a line over a symbol for a set means the complement of the set. In this case the complement of Q is the set of all irrationals."