SAINT LEO PHI110 RS Module 1 Logic QUIZ

SAINT LEO PHI110 RS Module 1 Logic QUIZ

1. Question : Consider the following argument:

Joe is obviously wrong about the New Testament having all been written prior to the destruction of Jerusalem in 70 A.D. I had an appointment at the dentist’s office today and my dentist agreed. There is just no way that parts of the Bible could have been written before 70 A.D.

Which of the following informal fallacies is most clearly present in the above argument?

Student Answer: Changing meanings

Dubious authority

Appeal to force

Ad hominem

Points Received: 4 of 4

Comments:

Question 2. Question : Consider the following argument:

(i) If all whales are mammals, then all mammals are whales.

(ii) All mammals are whales.

Therefore, (iii) all whales are mammals.

Which of the following is true of the argument? It is:

Student Answer: sound, but not valid.

valid, but not sound.

both valid and sound.

neither valid nor sound.

Points Received: 0 of 4

Comments:

Question 3. Question : Consider the following argument:

(i) Hugo Chavez is the current president of the United States.

(ii) The current president of the United States lives in the White House.

Therefore, (iii) Hugo Chavez lives in the White House.

Which of the following is true of the argument? It is:

Student Answer: sound, but not valid.

valid, but not sound.

both valid and sound.

neither valid nor sound.

Points Received: 0 of 4

Comments:

Question 4. Question : Consider the following argument:

(i) Barack Obama is the current president of Saint Leo University.

(ii) The current president of Saint Leo University lives in the White House.

Therefore, (iii) Barack Obama lives in the White House.

Which of the following is true of the argument? It is:

Student Answer: sound, but not valid.

valid, but not sound.

both valid and sound.

neither valid nor sound.

Points Received: 0 of 4

Comments:

Question 5. Question : Consider the following argument:

(i) If Wilma is a whale, then Wilma is a reptile.

(ii) If Wilma is a reptile, then Wilma is not a mammal.

Therefore, (iii) if Wilma is a whale, then Wilma is not a mammal.

Which of the following is true of the argument? It is:

Student Answer: sound, but not valid.

valid, but not sound.

both valid and sound.

neither valid nor sound.

Points Received: 0 of 4

Comments:

Question 6. Question : Give an example of an argument that is both valid and sound and uses the premise “If apples are fruit, then apples contain seeds.” Your argument must be non-circular and have exactly two premises.

Student Answer: 1) Apples are fruit. 2) Fruits have seeds. 3) If apples are fruit, then apples contain seeds.

Points Received: 5 of 10

Comments: This argument does not use the specified premise.

Question 7. Question : Give an example of an argument that is valid, but not sound and has the conclusion “If apples are fruit, then apples contain seeds.” Your argument must be non-circular and have exactly two premises.