Question 1 1 pts
Fill in the correct number that would appear under this wff in each of the indicated rows. (Note that the base columns for P, Q, and R are omitted here, but consider them as the standard base columns constructed in the way taught in the class.):

P Q R | ~(P → Q) = (Q v R)
Row 1
Row 3
Row 5
Row 7

Question 2 1 pts
Suppose you are using the truth table method to decide whether an argument is valid. Suppose that, as you work through the problem, you found that in every row where the conclusion is false the premises are also false. Pick the correct answer.

This isn't enough information to tell whether the argument is valid.
This shows the argument is valid.
This shows the argument is invalid.

Question 3 1 pts
Suppose you are asked to test this argument for validity with the short truth table method:

P Q R | P & ~Q | R > S || Q > S

Pick the correct answer.
Premise 2 and the conclusion are equally efficient places to start
Premise 1 and the conclusion are equally efficient places to start
Premises 1 and 2 are equally efficient places to star
The most efficient place to start is with the conclusion
The most efficient place to start is with premise 2

Question 4 1 pts
Suppose you are given an argument to test for validity using the short method. Suppose it turns out that no matter what row you pick two of the premises always have opposite truth value. (For example: if premise 1 is true, premise 2 is false; if premise 1 is false, premise 2 is true.)

This doesn't give us enough information to tell if the argument is valid
The argument is valid.
The argument is invalid.

Question 5 1 pts
Here's a wff:

(P > Q) v (Q > ~R)

If you completed the truth table for this wff, in how many rows would it be True (that is, how many rows would have a 1 under the "v"?) Enter your answer as a single digit -- a 0 or a 1 or a 2... or an 8

Question 1 1 pts Fill in the correct number that would appear unde...