Question 1

Aristotle wrote the first logic textbook in history.

Accepted Answer

A) True 
 B)False

Question 2

Disjunctive syllogism is a form of deductive reasoning.

Accepted Answer

A) True 
 B)False

Question 3

The following is a valid deductive argument: All rock fish are orange and red. So if we catch a rock fish, then it will surely be red and orange.

Accepted Answer

A) True 
 B)False

Question 4

"Organon" means "the organ we use for thinking, i.e., the brain."

Accepted Answer

A) True 
 B)False

Question 5

Some inductive arguments have false premises and a false conclusion, and yet they are nevertheless strong.

Accepted Answer

A) True 
 B)False

Question 6

Assume each of the following is a deductive argument. In each case, is the argument valid or invalid? (V or I)
-All cows are mammals. Some mammals are brown. Therefore, some cows are brown.

Accepted Answer

The answer of Assume each of the following is a...

Question 7

On critically evaluating inductive arguments. Read the following arguments and carry out the instructions below.
-Read the following argument and list of additional items. Would the addition of each item strengthen the argument, weaken the argument, or leave the strength of the argument unchanged? Consider each addition separately from the rest.
The Ace Widget Company needs a new delivery truck. The truck must be capable of hauling heavy crates of widgets, and it must be adequate for heavy city driving. The company next door, the Ajax Bakery, has a delivery truck for sale. The Ajax Company's president says the truck worked extremely well for its purposes. The president of Ace concludes that the Ajax truck will make an excellent delivery truck. 
a. The Ajax Company never hauled heavy loads. 
b. The Ajax Company used its truck mainly on the open highway. 
c. The conclusion is changed to: The truck will make a good delivery truck. 
d. The conclusion is changed to: The truck will be OK, though not always perfect. 
e. The Ajax Company plans to install a new widget-painting machine. 
f. The conclusion is changed to: The truck will make an absolutely perfect delivery truck.

Accepted Answer

a. Weakens 
b. Weake

Question 8

Some inductively strong arguments have false premises and a false conclusion.

Accepted Answer

A) True 
 B)False

Question 9

In a deductive argument:

Accepted Answer

A)  If the premises all are true, then the argument must be valid. 
B)  If the premises all are false, then the argument must be invalid. 
C)  If the premises are all true, then the argument is called a "true" argument. 
D)  None of the above. 
A)  If the premises all are true, then the argument must be valid. 
B)  If the premises all are false, then the argument must be invalid. 
C)  If the premises are all true, then the argument is called a "true" argument. 
D)  None of the above.

Question 10

Assume each of the following is a deductive argument. In each case, is the argument valid or invalid? (V or I)
-Only birds are blue. My pet is blue. So my pet is a bird.

Accepted Answer

The answer of Assume each of the following is a...

Question 11

If an argument is valid, then, although its premises may be false, at least its conclusion is always true.

Accepted Answer

A) True 
 B)False

Question 12

Is the argument deductive (D) or inductive (I)?
-If Joe wins the bet, then he goes home early. He is not going home early. Therefore, he certainly did not win the bet.

Accepted Answer

The answer of Is the argument deductive (D) or inductive...

Question 13

A deductive argument claims only that the conclusion is probably true.

Accepted Answer

A) True 
 B)False

Question 14

The combination you will not find in a sound argument is:

Accepted Answer

A)  True premises and a true conclusion 
B)  True premises and valid reasoning 
C)  True premises and invalid reasoning 
D)  All of the above 
A)  True premises and a true conclusion 
B)  True premises and valid reasoning 
C)  True premises and invalid reasoning 
D)  All of the above

Question 15

Deductive arguments are intended to show that the conclusion must be true.

Accepted Answer

A) True 
 B)False

Question 16

The following is a valid argument: No splogs are crogs. No crogs are blonks. So no splogs are blonks.

Accepted Answer

A) True 
 B)False

Question 17

In a generalization from a sample, the more random the sample, the stronger the argument.

Accepted Answer

A) True 
 B)False

Question 18

The Academy was located in:

Accepted Answer

A)  Atlantis 
B)  Sparta 
C)  Athens 
D)  America 
E)  Thebes.
F) None of the above 
A)  Atlantis 
B)  Sparta 
C)  Athens 
D)  America 
E)  Thebes.
F) None of the above

Question 19

The combination you will not find in a sound argument is:

Accepted Answer

A)  True premises and a false conclusion 
B)  True premises and a true conclusion 
C)  False premises and a false conclusion 
D)  False premises and a true conclusion 
E)  a, c, and d 
A)  True premises and a false conclusion 
B)  True premises and a true conclusion 
C)  False premises and a false conclusion 
D)  False premises and a true conclusion 
E)  a, c, and d

Question 20

Think with Socrates does not contain a section on enthymemes. However, the concept can be defined briefly. This exercise defines an enthymeme and gives students a chance to practice filling in holes in incomplete deductive arguments. 
An enthymeme is an argument that is missing one or more premises or a conclusion. Each of the following deductive arguments is missing either a premise or a conclusion. (Thus, each is an enthymeme.) Add a statement to each so as to turn the enthymeme into a valid argument.
-If the abominable snowman is a mammal, then not all species of mammals have been discovered. All species of mammals have been discovered. Therefore, …

Accepted Answer

An enthymeme is indeed a type of argumen

Aristotle wrote the first logic textbook in history.

Disjunctive syllogism is a form of deductive reasoning.

The following is a valid deductive argument: All rock fish are orange and red. So if we catch a rock fish, then it will surely be red and orange.

"Organon" means "the organ we use for thinking, i.e., the brain."

Some inductive arguments have false premises and a false conclusion, and yet they are nevertheless strong.

Assume each of the following is a deductive argument. In each case, is the argument valid or invalid? (V or I) -All cows are mammals. Some mammals are brown. Therefore, some cows are brown.

Some inductively strong arguments have false premises and a false conclusion.

In a deductive argument:

Assume each of the following is a deductive argument. In each case, is the argument valid or invalid? (V or I) -Only birds are blue. My pet is blue. So my pet is a bird.

If an argument is valid, then, although its premises may be false, at least its conclusion is always true.

Is the argument deductive (D) or inductive (I)? -If Joe wins the bet, then he goes home early. He is not going home early. Therefore, he certainly did not win the bet.

A deductive argument claims only that the conclusion is probably true.

The combination you will not find in a sound argument is:

Deductive arguments are intended to show that the conclusion must be true.

The following is a valid argument: No splogs are crogs. No crogs are blonks. So no splogs are blonks.

In a generalization from a sample, the more random the sample, the stronger the argument.

The Academy was located in:

The combination you will not find in a sound argument is:

Socrates Part 1: Life and Method

Socrates Part 2: Life and Death

On Socratess Two Favorite Questions

Cognitive Biases

Relativism and Skepticism

Reason and the Senses

Personal Experience, Testimony, and Expert Authority

Watch Out for Logical Fallacies

The Internet, News Media, and Advertising

Explorations in Inductive Reasoning: The Logic of Science

Explorations in Deductive Reasoning: Categorical Logic

Critical Thinking and Moral Reasoning

Critical Thinking, Worldviews, and the Examined Life

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Exam 10: Deduction and Induction: A Closer Look

Aristotle wrote the first logic textbook in history.

Disjunctive syllogism is a form of deductive reasoning.

The following is a valid deductive argument: All rock fish are orange and red. So if we catch a rock fish, then it will surely be red and orange.

"Organon" means "the organ we use for thinking, i.e., the brain."

Some inductive arguments have false premises and a false conclusion, and yet they are nevertheless strong.

Assume each of the following is a deductive argument. In each case, is the argument valid or invalid? (V or I) -All cows are mammals. Some mammals are brown. Therefore, some cows are brown.

Some inductively strong arguments have false premises and a false conclusion.

In a deductive argument:

Assume each of the following is a deductive argument. In each case, is the argument valid or invalid? (V or I) -Only birds are blue. My pet is blue. So my pet is a bird.

If an argument is valid, then, although its premises may be false, at least its conclusion is always true.

Is the argument deductive (D) or inductive (I)? -If Joe wins the bet, then he goes home early. He is not going home early. Therefore, he certainly did not win the bet.

A deductive argument claims only that the conclusion is probably true.

The combination you will not find in a sound argument is:

Deductive arguments are intended to show that the conclusion must be true.

The following is a valid argument: No splogs are crogs. No crogs are blonks. So no splogs are blonks.

In a generalization from a sample, the more random the sample, the stronger the argument.

The Academy was located in:

The combination you will not find in a sound argument is:

Socrates Part 1: Life and Method

Socrates Part 2: Life and Death

On Socratess Two Favorite Questions

Cognitive Biases

Relativism and Skepticism

Reason and the Senses

Personal Experience, Testimony, and Expert Authority

Watch Out for Logical Fallacies

The Internet, News Media, and Advertising

Explorations in Inductive Reasoning: The Logic of Science

Explorations in Deductive Reasoning: Categorical Logic

Critical Thinking and Moral Reasoning

Critical Thinking, Worldviews, and the Examined Life

Filters