Question 18 : Consider this propositions: "All birds have beaks. Some cat are birds. So some cats have beaks". Is this argument valid?
no, it is not valid
yes, it is valid
only the second premise is not valid
the second and thrid proposition are not valid
Question 19 : Which of these options is not correct?
any valid argument with at least one false premise is an unsound argument
all invalid arguments are unsound
if the premises are false, then the argument is not valid
any valid argument with all premises true is a sound argument
Question 20 : Which part of the conclusion in an argument automatically becomes the major term?