Answer Happy

If p: "The user enters a valid password," q: "access is granted" and r: "the user has paid the subscription fee" and logical connectives (including negation); and we have the specifications as follows: • The user has paid the subscription fee, but has not entered a valid password • Access is granted whenever the user has paid the subscription fee and enters a valid password • Access is denied if the user has not paid the subscription fee • If the user has not entered a valid password and has paid the subscription fee, then access is granted Which of the following propositions is not a specification. ~r=> q Орлар (r^ p) => q ~p^r=>q