Propositional Logic: Logical Arguments and Disjunctive Syllogisms

This quiz will test your understanding of propositional logic, logical arguments, and disjunctive syllogisms.

15 Questions Published

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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following is a valid logical argument?

If it is raining, then the ground is wet.
If the ground is wet, then it is raining.
It is raining, therefore the ground is wet.
The ground is wet, therefore it is raining.

Question 2 Multiple Choice (Single Answer)

Which of the following is an example of a disjunctive syllogism?

Either it is raining or the sun is shining.
If it is raining, then the ground is wet.
It is raining, therefore the ground is wet.
The ground is wet, therefore it is raining.

Question 3 Multiple Choice (Single Answer)

Which of the following is a valid disjunctive syllogism?

Either it is raining or the sun is shining.
If it is raining, then the ground is wet.
It is raining, therefore the ground is wet.
The ground is wet, therefore it is raining.

Question 4 Multiple Choice (Single Answer)

Which of the following is an example of a fallacy of affirming the consequent?

If it is raining, then the ground is wet.
If the ground is wet, then it is raining.
It is raining, therefore the ground is wet.
The ground is wet, therefore it is raining.

Question 5 Multiple Choice (Single Answer)

Which of the following is an example of a fallacy of denying the antecedent?

If it is raining, then the ground is wet.
If the ground is wet, then it is raining.
It is raining, therefore the ground is wet.
The ground is not wet, therefore it is not raining.

Question 6 Multiple Choice (Single Answer)

Which of the following is an example of a hypothetical syllogism?

If it is raining, then the ground is wet.
If the ground is wet, then it is raining.
It is raining, therefore the ground is wet.
The ground is wet, therefore it is raining.

Question 7 Multiple Choice (Single Answer)

Which of the following is a valid hypothetical syllogism?

If it is raining, then the ground is wet.
If the ground is wet, then it is raining.
It is raining, therefore the ground is wet.
The ground is wet, therefore it is raining.

Question 8 Multiple Choice (Single Answer)

Which of the following is an example of a categorical syllogism?

All men are mortal.
Socrates is a man.
Therefore, Socrates is mortal.

Question 9 Multiple Choice (Single Answer)

Which of the following is a valid categorical syllogism?

All men are mortal.
Socrates is a man.
Therefore, Socrates is mortal.

Question 10 Multiple Choice (Single Answer)

Which of the following is an example of a fallacy of the undistributed middle term?

All men are mortal.
Socrates is a man.
Therefore, Socrates is mortal.

Question 11 Multiple Choice (Single Answer)

Which of the following is an example of a fallacy of the four terms?

All men are mortal.
Socrates is a man.
Therefore, Socrates is mortal.

Question 12 Multiple Choice (Single Answer)

Which of the following is an example of a fallacy of the excluded middle?

Either it is raining or it is not raining.
It is raining.
Therefore, it is not raining.

Question 13 Multiple Choice (Single Answer)

Which of the following is an example of a fallacy of affirming the consequent?

If it is raining, then the ground is wet.
The ground is wet.
Therefore, it is raining.

Question 14 Multiple Choice (Single Answer)

Which of the following is an example of a fallacy of denying the antecedent?

If it is raining, then the ground is wet.
It is not raining.
Therefore, the ground is not wet.

Question 15 Multiple Choice (Single Answer)

Which of the following is an example of a valid argument?

All men are mortal.
Socrates is a man.
Therefore, Socrates is mortal.

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