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January 30, 2015

January 30, 2015

Posted by **ANSWERS** on Sunday, June 23, 2013 at 6:09pm.

"~ 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.

Points Received: 0 of 1

Comments:

2. Question :

"Julie and Kurt got married and had a baby" is best symbolized as

Student Answer: M v B

CORRECT M & B

M → B

M ↔ B

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

Points Received: 1 of 1

Comments:

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.

Points Received: 0 of 1

Comments:

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.

Points Received: 1 of 1

Comments:

5. Question :

If P is true, and Q is false, the truth-value of "P v Q" is

Student Answer: false.

CORRECT true.

Cannot be determined

All of the above

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

Points Received: 1 of 1

Comments:

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.

Points Received: 1 of 1

Comments:

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.

Points Received: 1 of 1

Comments:

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.

Points Received: 1 of 1

Comments:

9. Question :

Truth tables can be used to examine

Student Answer: inductive arguments.

CORRECT deductive arguments.

abductive arguments.

All of the above

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

Points Received: 1 of 1

Comments:

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.

Points Received: 1 of 1

Comments:

- Phil103 Informal Logic -
**MathMate**, Sunday, June 23, 2013 at 6:24pmI think you would be more productive if you read Chapter six before you attempt these exercises.

For example:

~p∨q reads as not p or q, with the "not" applying to p only.

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