# Phil103 Informal Logic

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. If P is false, and Q is false, the truth-value of "P ¡êQ" is (Points : 1)
false.
true.
Cannot be determined.
All of the above.

2. What is the truth value of the sentence "P & ~ P"? (Points : 1)
True
False
Cannot be determined
Not a sentence

3. If P is true, and Q is false, the truth-value of "P ¡æ Q" is (Points : 1)
false.
true.
Cannot be determined.
All of the above.

4. Truth tables can determine which of the following? (Points : 1)
If an argument is valid
If an argument is sound
If a sentence is valid
All of the above

5. The sentence "P ¡ê Q" is best read as

(Points : 1)
If P then Q
If Q then P
P or Q
P if and only if Q

6. "Julie and Kurt got married and had a baby" is best symbolized as (Points : 1)
M v B
M & B
M ¡æ B
M ¡ê B

7. Truth tables can (Points : 1)
display all the possible truth values involved with a set of sentences.
determine what scientific claims are true.
determine if inductive arguments are strong.
determine if inductive arguments are weak.

8. In the conditional "P ¡æQ," "P" is a (Points : 1)
sufficient condition for Q.
sufficient condition for P.
necessary condition for P.
necessary condition for Q.

9. The truth table for a valid deductive argument will show (Points : 1)
wherever the premises are true, the conclusion is true.
that the premises are false.
that some premises are true, some premises false.
wherever the premises are true, the conclusion is false.

10. A conditional sentence with a false antecedent is always (Points : 1)
true.
false.
Cannot be determined.
not a sentence.

• Phil103 Informal Logic -

1.a
2.a
3.a
4.a
5.b
6.c

• Phil103 Informal Logic -

a
c
d

• Phil103 Informal Logic -

What are the anwser for these post? Thanks!

• Phil103 Informal Logic -

6 M&B

• Phil103 Informal Logic -

In the conditional "P ¨ Q," "Q is a
necessary condition for P.

• Phil103 Informal Logic -

Phi 103 informal logic test week 5 answers

• Phil103 Informal Logic -

1 B
2 c
3 A
4 A
5 B
6 B
7 A
8 A
I did not give you 9& 10 b/c you need to miss some of them at least you pass i miss three and made a 70 you miss two you make an 80 better than a 30

• Phil103 Informal Logic -

1 A
2 A
3 B
4 A
5 C
6 C
7 D

YOU WILL HAVE FIGURE OUT THE OTHER 4.... BUT IF YOU GET THOSE 7 CORRECT YOU WILL MAKE A 70. BETTER THEN A ZERO.

• Phil103 Informal Logic -

1. Question :

A sentence is said to be truth-functional if and only if
Student Answer: the sentence might be true.
the truth-value of the sentence cannot be determined from the truth values of its components.
the truth-value of the sentence is determined always to be false.
CORRECT the truth-value of the sentence can be determined from the truth values of its components.
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

2. Question :

Truth tables can be used to examine
CORRECT deductive arguments.
abductive arguments.
All of the above
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

3. Question :

What is the truth value of the sentence "P v ~ P"?
False
Cannot be determined
Not a sentence
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

4. Question :

A conditional sentence with a false antecedent is always
false.
Cannot be determined.
not a sentence.
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

5. Question :

"Julie and Kurt got married and had a baby" is best symbolized as
CORRECT M & B
M → B
M ↔ B

Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

6. Question :

If P is true, and Q is false, the truth-value of "P v Q" is
CORRECT true.
Cannot be determined
All of the above
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

7. Question :

"~ P v Q" is best read as
Student Answer: Not P and Q
It is not the case that P and it is not the case that Q
CORRECT It is not the case that P or Q
It is not the case that P and Q
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

8. Question :

Truth tables can determine which of the following?
Student Answer: CORRECT If an argument is valid
If an argument is sound
If a sentence is valid
INCORRECT All of the above
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

9. Question :

In the truth table for an invalid argument,
Student Answer: on at least one row, where the premises are all true, the conclusion is true.
CORRECT on at least one row, where the premises are all true, the conclusion is false.
on all the rows where the premises are all true, the conclusion is true.
on most of the rows, where the premises are all true, the conclusion is true.
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

10. Question :

Truth tables can
Student Answer: CORRECT display all the possible truth values involved with a set of sentences.
determine what scientific claims are true.
determine if inductive arguments are strong.
determine if inductive arguments are weak.
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

• Phil103 Informal Logic -

1. Question :

"~ P v Q" is best read as
Student Answer: Not P and Q
INCORRECT It is not the case that P and it is not the case that Q
CORRECT It is not the case that P or Q
It is not the case that P and Q
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

2. Question :

"Julie and Kurt got married and had a baby" is best symbolized as
CORRECT M & B
M → B
M ↔ B

Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

3. Question :

In the conditional "P → Q," "Q is a
Student Answer: sufficient condition for Q.
INCORRECT sufficient condition for P.
CORRECT necessary condition for P.
necessary condition for Q.
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

4. Question :

Truth tables can
Student Answer: CORRECT display all the possible truth values involved with a set of sentences.
determine what scientific claims are true.
determine if inductive arguments are strong.
determine if inductive arguments are weak.
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

5. Question :

If P is true, and Q is false, the truth-value of "P v Q" is
CORRECT true.
Cannot be determined
All of the above
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

6. Question :

The truth table for a valid deductive argument will show
Student Answer: CORRECT wherever the premises are true, the conclusion is true.
that the premises are false.
that some premises are true, some premises false.
wherever the premises are true, the conclusion is false.
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

7. Question :

The sentence "P ↔ Q" is best read as

Student Answer: If P then Q
If Q then P
P or Q
CORRECT P if and only if Q
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

8. Question :

A sentence is said to be truth-functional if and only if
Student Answer: the sentence might be true.
the truth-value of the sentence cannot be determined from the truth values of its components.
the truth-value of the sentence is determined always to be false.
CORRECT the truth-value of the sentence can be determined from the truth values of its components.
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

9. Question :

Truth tables can be used to examine
CORRECT deductive arguments.
abductive arguments.
All of the above
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

10. Question :

Truth tables can determine which of the following?
Student Answer: CORRECT If an argument is valid
If an argument is sound
If a sentence is valid
All of the above
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

• Phil103 Informal Logic -

1. Question :
If P is false, and Q is false, the truth-value of "P ¡êQ" is

CORRECT true.
Cannot be determined.
All of the above.
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

2. Question :
"~ P v Q" is best read as

Student Answer: Not P and Q
It is not the case that P and it is not the case that Q
CORRECT It is not the case that P or Q
It is not the case that P and Q
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

3. Question :
In the conditional "P ¡æ Q," "Q is a

Student Answer: sufficient condition for Q.
sufficient condition for P.
CORRECT necessary condition for P.
necessary condition for Q.
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

4. Question :
In the truth table for an invalid argument,

Student Answer: INCORRECT on at least one row, where the premises are all true, the conclusion is true.
CORRECT on at least one row, where the premises are all true, the conclusion is false.
on all the rows where the premises are all true, the conclusion is true.
on most of the rows, where the premises are all true, the conclusion is true.
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

5. Question :
A conditional sentence with a false antecedent is always

false.
Cannot be determined.
not a sentence.
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

6. Question :
What is the truth value of the sentence "P v ~ P"?

False
Cannot be determined
Not a sentence
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

7. Question :
If P is true, and Q is false, the truth-value of "P v Q" is

CORRECT true.
Cannot be determined
All of the above
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

8. Question :
Truth tables can

Student Answer: CORRECT display all the possible truth values involved with a set of sentences.
determine what scientific claims are true.
determine if inductive arguments are strong.
determine if inductive arguments are weak.
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

9. Question :
A sentence is said to be truth-functional if and only if

Student Answer: the sentence might be true.
the truth-value of the sentence cannot be determined from the truth values of its components.
the truth-value of the sentence is determined always to be false.
CORRECT the truth-value of the sentence can be determined from the truth values of its components.
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

10. Question :
What is the truth value of the sentence "P & ~ P"?

CORRECT False
Cannot be determined
Not a sentence
Instructor Explanation: The answer can be found in Chapter Six of An Introduction to Logic.

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