3. For each of the following arguments determine whether the argument is correct or incorrect by translating English sentences into logical propositions and verifying if the conclusion can be obtained from the premises through valid rules of inference. a) If Mona does not take a course in discrete mathematics, then she will not graduate. If Mona does not graduate, then she is not qualified for the job. If Mona reads this book, then she is qualified for the job. Mona takes a course in discrete mathematics. Therefore, Mona does not read this book. b) No juniors left campus for the weekend. Some math majors are not juniors. Therefore, some math majors left campus for the weekend