Practice Quiz #2

 We will review this practice quiz on Monday, March 23; we will have quiz #2 on Wednesday, March 25

1. Reproduce the chart for induction and deduction.

2. Write a sound deductive inference.

3. Write a strong inductive inference.

4. Translate into formal symbolic language:

a. I will go to the party only if you will go (use I and Y).

b. It is not both sunny and warm today (use S and W).

c. It is neither sunny nor warm today (use S and W)

5. Is the following inference valid or invalid:

If A then B; not A, therefore, not B.

Show validity using the 8 rules of deduction:

1. Q

2. P   /therefore, (Q or R) and T

1. If A then B

2. not B and not C  /therefore, A and not C

1. If D or E, then A and B

2. D   /therefore, B

1. If P then Q

2. P or (R and S)  

3. not Q and not T   /therefore, R