For each of these collections of premises, what relevant conclusion or conclusions can be drawn?
a) “If I take the day off, it either rains or snows.” “I took Tuesday off or I took Thursday off.” “It was sunny on Tuesday.” “It did not snow on Thursday.”
b) “If I eat spicy foods, then I have strange dreams.” “I have strange dreams if there is thunder while I sleep.” “I did not have strange dreams.”
c) “I am either clever or lucky.” “I am not lucky.” “If I am lucky, then I will win the lottery.”
d) “Every computer science major has a personal computer.” “Ralph does not have a personal computer.” “Ann has a personal computer.”
