Exercise 5: Determine whether or not the following arguments are valid by using the informal test of validity. If the argument is invalid, provide a counterexample.1.Katie is a human being. Therefore, Katie is smarter than a chimpanzee.
2.Bob is a fireman. Therefore, Bob has put out fires.
3.Gerald is a mathematics professor. Therefore, Gerald knows how to teach mathematics.Valid4.Monicais a French teacher. Therefore, Monica knows how to teach French.
5.Bob is taller than Susan. Susan is taller than Frankie. Therefore, Bob is