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Categorical Syllogisms: Basic concept questions about the RULES

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Categorical Syllogisms: Basic concept questions about the RULES.

Question 1 (1 point)

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Match the description with the fallacy:

Two negative premises.

Question 1 options:

	Undistributed middle term
	Existential fallacy (Boolean)
	Exclusive premises
	Illicit minor
	Rule #4 fallacy
	Illicit major

Question 2 (1 point)

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Which one of the following propositions distributes only its predicate?

Question 2 options:

	All S are P
	Some S are not P
	Some S are P
	No S are P

Question 3 (1 point)

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When does the fallacy of exclusive premises occur?

Question 3 options:

	When there is a negative premise and a negative conclusion.
	When there are two negative premises.
	When there is a negative premise, but no negative conclusion.
	When there is not a negative premise.

Question 4 (1 point)

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How many times must the middle term be distributed?

Question 4 options:

	At least twice.
	Exactly twice.
	At least once
	Exactly once

Question 5 (1 point)

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When does the fallacy of the illicit minor occur?

Question 5 options:

	When the minor term is distributed in the premise but not in the conclusion.
	When there is no minor term.
	When the minor term is distributed in the conclusion but not in the minor premise.
	When the minor term is not distributed at all.

Question 6 (1 point)

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Which one of the following propositions is negative and universal?

Question 6 options:

	Some S are not P
	All S are P
	Some S are P
	No S are P

Question 7 (1 point)

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The existential fallacy occurs in two ways. Which way is the Boolean way?

Question 7 options:

	When the premises are universal but the conclusion is particular.
	When the premises are universal but the conclusion is a particular thing that does not actually exist.
	When a premise and a conclusion are particulars.
	When the conclusion is a universal but the premises are particular.

Question 8 (1 point)

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What fallacy is committed when a syllogism has a negative premise but not a negative conclusion?

Question 8 options:

	Exclusive premises
	Illicit major
	Existential fallacy
	Rule #4 violation (there is no cool name)

Basic questions about counterexamples

Question 9 (1 point)

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What is the first step to making a counter example?

Question 9 options:

	Make the premises TRUE with commonly understood terms.
	Replace the terms with variables (if not already).
	Begin with an invalid syllogism.
	Make the conclusion FALSE with commonly understood terms.

Question 10 (1 point)

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What principle does the counterexample method rely on?

Question 10 options:

	An argument that has true premises is valid.
	All arguments with true premises and a true conclusion are valid.
	An argument that can have true premises and a false conclusion is invalid.
	All arguments with false conclusions are invalid.

Question 11 (1 point)

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What is the third step to making a counter example?

Question 11 options:

	Replace the terms with variables (if not already).
	Make the premises TRUE with commonly understood terms.
	Make the conclusion FALSE with commonly understood terms.
	Begin with an invalid syllogism.

Practice

Practice with the rules.

Question 12 (1 point)

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Which fallacy or fallacies (if any) does the following syllogism commit? (the conclusion is underneath the line). Check all that apply.

All P are M

No M are S

No S are P

Question 12 options:

	Exclusive premises
	Illicit major
	Undistributed middle
	Existential fallacy (Boolean)
	Illicit minor
	No, fallacy; it's valid.
	Rule #4

Question 13 (1 point)

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Which fallacy or fallacies (if any) does the following syllogism commit? (the conclusion is underneath the line). Check all that apply.

All P are M

No S are M

All S are P

Question 13 options:

	No, fallacy; it's valid.
	Undistributed middle
	Rule #4
	Exclusive premises
	Illicit minor
	Existential fallacy (Boolean)
	Illicit major

Question 14 (1 point)

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Which fallacy or fallacies (if any) does the following syllogism commit? (the conclusion is underneath the line). Check all that apply.

All M are P

All M are S

Some S are P

Question 14 options:

	Existential fallacy (Boolean)
	Undistributed middle
	Illicit minor
	Illicit major
	No, fallacy; it's valid.
	Rule #4
	Exclusive premises

Question 15 (1 point)

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Which fallacy or fallacies (if any) does the following syllogism commit? (the conclusion is underneath the line). Check all that apply.

Some M are P

All M are S

Some S are not P

Question 15 options:

	Undistributed middle
	Illicit minor
	Existential fallacy (Boolean)
	Exclusive premises
	Rule #4
	No, fallacy; it's valid.
	Illicit major

Question 16 (1 point)

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Which fallacy or fallacies (if any) does the following syllogism commit? (the conclusion is underneath the line). Check all that apply.

No M are P

Some M are S

Some S are not P

Question 16 options:

	Existential fallacy (Boolean)
	Rule #4
	Illicit major
	Illicit minor
	No, fallacy; it's valid.
	Exclusive premises
	Undistributed middle

Question 17 (1 point)

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Which fallacy or fallacies (if any) does the following syllogism commit? (the conclusion is underneath the line). Check all that apply.

No P are M

All S are M

No S are P

Question 17 options:

	Existential fallacy (Boolean)
	Rule #4
	Undistributed middle
	No, fallacy; it's valid.
	Exclusive premises
	Illicit major
	Illicit minor

Question 18 (1 point)

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Which fallacy or fallacies (if any) does the following syllogism commit? (the conclusion is underneath the line). Check all that apply.

Some M are not P

Some S are not M

Some S are not P

Question 18 options:

	Rule #4
	Illicit minor
	Exclusive premises
	No, fallacy; it's valid.
	Illicit major
	Existential fallacy (Boolean)
	Undistributed middle

Question 19 (1 point)

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Which fallacy or fallacies (if any) does the following syllogism commit? (the conclusion is underneath the line). Check all that apply.

No M are P

All S are M

No S are P

Question 19 options:

	Exclusive premises
	Illicit minor
	No, fallacy; it's valid.
	Existential fallacy (Boolean)
	Illicit major
	Rule #4
	Undistributed middle

Question 20 (1 point)

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Given the following two premises of a valid syllogism, what conclusion must logically follow.

Some M are P

Some S are M

Use the rules or the Venn diagrams to find the answer.

Question 20 options:

	Some S are P
	No conclusion follows
	All S are P
	Some S are not P
	No S are P

Question 21 (1 point)

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Given the following two premises of a valid syllogism, what conclusion must logically follow.

Some P are M

All M are S

Use the rules or the Venn diagrams to find the answer.

Question 21 options:

	Some S are P
	Some S are not P
	No S are P
	All S are P
	No conclusion follows

Question 22 (1 point)

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Given the following two premises of a valid syllogism, what conclusion must logically follow.

All M are P

All S are M

Use the rules or the Venn diagrams to find the answer.

Question 22 options:

	Some S are P
	All S are P
	No S are P
	Some S are not P

Question 23 (1 point)

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Given the following two premises of a valid syllogism, what conclusion must logically follow.

No M are P

No S are M

Use the rules or the Venn diagrams to find the answer.

Question 23 options:

	No S are P
	Some S are P
	All S are P
	No conclusion follows
	Some S are not P

Question 24 (1 point)

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Given the following two premises of a valid syllogism, what conclusion must logically follow.

Some P are not M

Some S are M

Use the rules or the Venn diagrams to find the answer.

Question 24 options:

	Some S are P
	All S are P
	No S are P
	Some S are not P
	No conclusion follows

Practice with counterexamples

 

Question 25 (1 point)

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Which of the following cannot be a PREMISE in a counterexample?

Question 25 options:

	All dogs are golden retrievers.
	All golden retrievers are dogs.
	All golden retrievers are animals.
	All mammals are animals.

Question 26 (1 point)

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What term will correctly complete this counterexample?

All _____ are dogs.

Some dachshunds are not _____.

Some dachshunds are not dogs

Question 26 options:

	Cars.
	Poodles
	Cats
	Dachsunds.

Question 27 (1 point)

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Consider the following invalid syllogism. Which of the following selections is the counter example?

Some P are M

Some S are M

Some S are P

Question 27 options:

	Some apples are green fruits Some Granny Smiths are green fruits Some Granny Smiths are apples
	Some cats are animals Some dogs are animals Some dogs are cats
	Some furry creatures are dogs Some golden retrievers are dogs Some golden retrievers are furry creatures
	Some eggplants are vegetables Some green things are vegetables Some green things are eggplants

Question 28 (1 point)

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The following syllogism is invalid and you have to do a counterexample of it. Which of the following is a good option for the conclusion?

Some M are P

Some M are S

Some S are P

Question 28 options:

	Some cats are dogs.
	Some dogs are canines.
	Some golden retrievers are dogs.
	Some cats are felines.

Question 29 (1 point)

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The following syllogism is invalid and you have to do a counterexample of it. Which of the following is a good option for the conclusion?

All M are P

All M are S

All S are P

Question 29 options:

	All golden retrievers are dogs.
	All dogs are canines.
	All cats are dogs.
	All cats are felines.