Traveling on, you meet Merlin and Meredith. Merlin says, "If I am a truth teller, then Meredith is a truth teller." Is Merlin a liar or a truth teller? What about Meredith? Explain your answer.
In Exercises 61-64, you are traveling in a certain country where every inhabitant is either a truthteller who always tells the truth or a liar who always lies.