Dr. Winkleman

How well do you know the Square of Opposition?

1. Which statement appears in the upper left corner?
a. A statement
b. E statement
c. I statement
d. O statement

2. Which statement appears in the upper right corner?
a. A statement
b. E statement
c. I statement
d. O statement

3. Which statement appears in the lower left corner?
a. A statement
b. E statement
c. I statement
d. O statement

4. Which statement appears in the lower right corner?
a. A statement
b. E statement
c. I statement
d. O statement

5. Since A statements are contradictory to O statements ...
a. If an A statement is true, then the corresponding O statement must be true.
b. If an A statement is true, then the corresponding O statement must be false.
c. If an A statement is true, then the corresponding I statement must be true.
d. If an A statement is true, then the corresponding E statement must be false.

6. Since E statements are contradictory to I statements ...
a. If an E statement is true, then the corresponding A statement must be true.
b. If an E statement is false, then the corresponding A statement must be true.
c. If an E statement is true, then the corresponding I statement must be true.
d. If an E statement is true, then the corresponding I statement must be false.

7. If the statement Some Roses are Red is true, what else must be the case?
a. No Roses are Red must be false.
b. No Roses are Red must be true.
c. Some Roses are not Red must be false.
d. Some Roses are not Red must be true.

8. If the statement All Airplanes are Metal is false, what else must be the case?
a. All Airplanes are Metal must be true.
b. No Airplanes are Metal must be true.
c. Some Airplanes are Metal must be true.
d. None of the above.

9. If the statement Some Students are not Awake is true, what else must be the case?
a. Some Students are Awake must be true.
b. All Students are Awake must be false.
c. No Students are Awake must be false.
d. None of the above.

10. If the statement No Bees have Wings is true, what else must be the case?
a. All Bees have Wings must be false.
b. All Bees have Wings must be true.
c. Some Bees have Wings must be true.
d. None of the above.