Exam 9: Deductive Arguments I Categorical Logic

Reconstruct the following as a standard-form syllogism;then,determine whether it is valid using either a Venn diagram or the rules of the syllogism. "No country can vote for a man as President who aims to destroy the system he heads.That's why we didn't support [Stipe] Mesic." -Borisav Jovic,former president of Yugoslavia

Translate the following into a standard-form categorical claim:Exceptional employees are always rewarded.

Translate the following into a standard-form categorical claim:Only organic products are chemical-free products.

Determine whether the following argument is valid by using either the diagram method or the rules of the syllogism. All the networks devoted considerable attention to reporting poll results during the last election,but many of those poll results were not especially newsworthy.So the networks have to admit that some unnewsworthy items received quite a bit of their attention.

Translate the following into a standard-form categorical claim:Banks are not the only savings institutions.

Determine whether the following argument is valid by using either the diagram method or the rules of the syllogism. Everybody who exhibits hubris is an arrogant person,and some arrogant people are not sympathetic people.So some people who exhibit hubris are not sympathetic people.

Determine whether the following argument is valid by using either the diagram method or the rules of the syllogism. Some Xs are Ys. No Zs are Ys. So,some Xs are not Zs.

Translate the following into a standard-form categorical claim:Only athletes play in the National Basketball Association.

Determine whether the following argument is valid by using either the diagram method or the rules of the syllogism. No Xs are Ys. Some Ys are not Zs. So,some Xs are not Zs.

Reconstruct the following as a standard-form syllogism;then,determine whether it is valid using either a Venn diagram or the rules of the syllogism. "Not necessarily,Mr.Dalgliesh.Suppose it's a double bluff.Suppose he's saying in effect,'Look,I can prove I knew the Whistler was dead.Whoever killed Hilary Robarts didn't know.So why aren't you looking for someone who hadn't been told that the Whistler's body had been found?'" -P.D.James,Devices and Desires I = people identical to me;W = people who knew the Whistler was dead;K = people who killed Hilary Robarts. No W are K. All I are W. Therefore,no I are K. Valid.

Reconstruct the following as a standard-form syllogism,and determine whether it is valid. The new dean at Stratford Business School initiated many new policies after taking office.All of the new policies emphasized employee and customer satisfaction.After a conversation with the new dean,an associate dean remarked that since none of the policies of the old curriculum was among those initiated by the dean,the associate dean had to conclude,to his surprise,that none of the old curriculum emphasized employee and customer satisfaction.

Translate the following into a standard-form categorical claim:Nobody in the middle school did better on the exam than Lauren.

Here is an argument with an unstated premise or conclusion.Translate it into a standard-form syllogism and determine whether the reasoning is valid. Whoa,don't enroll in that class,man.That's a physics class;all those people must be brains.

Translate the following into a standard-form categorical claim:If it's a gigantosaurus,then it's bigger than a tyrannosaurus rex.

Translate the following into a standard-form categorical claim:The morning star is actually the evening star.

Here is an argument with an unstated premise or conclusion.Translate it into a standard-form syllogism and determine whether the reasoning is valid. It seems like everyone who goes to lots of movies loves Julia Roberts;I guess Becky must go to lots of movies.

Determine whether the following argument is valid by using either the diagram method or the rules of the syllogism. Every vice president has an advantage over his opponent in a presidential election.Senator Junket is not a vice president,of course,so he cannot have an advantage in the coming election.

Reconstruct the following as a standard-form syllogism,and determine whether it is valid. From a letter to the editor:"Any project that gets taxpayers' money ought to be one that the taxpayers get some sort of benefit from,don't you think? So if the Federal Aviation Authority is going to pour millions in public funds into automated flight centers at all privately owned airports,then justice can only be served by forcing those airports to begin offering services to the public as well as their current wealthy patrons."

Translate the following into a standard-form categorical claim:Banks are the only savings institutions.

Reconstruct the following as a standard-form syllogism,and determine whether it is valid. None of the southern provinces of Spain were outside the control of the Moors before the end of the fifteenth century.So all the provinces of Andalucia must have been within Moorish control,because all of them are southern provinces.