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April 19, 2014

Homework Help: phi103

Posted by thomas on Monday, December 19, 2011 at 3:00pm.

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

2. "Julie and Kurt got married and had a baby" is best symbolized as (Points : 1)
M v B
M & B
M → B
M ↔ B



3. 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

4. Truth tables can be used to examine (Points : 1)
inductive arguments.
deductive arguments.
abductive arguments.
All of the above

5. In the truth table for an invalid argument, (Points : 1)
on at least one row, where the premises are all true, the conclusion is true.
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.

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

7. 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.

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

9. "P v Q" is best interpreted as (Points : 1)
P or Q but not both P and Q
P or Q or both P and Q
Not both P or Q
P if and only if Q

10. In the conditional "P →Q," "P" is a (Points : 1)
sufficient condition for Q.
sufficient condition for P.
necessary condition for P.
necessary condition for Q.

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