★7. If “Some obsessive-compulsive behaviors are not curable diseases” is true, what is the truth value of the following statements?

a. All obsessive-compulsive behaviors are curable diseases.

b. No obsessive-compulsive behaviors are curable diseases.

c. Some obsessive-compulsive behaviors are curable diseases. Use the traditional square of opposition to fi nd the answers to these problems.
When a statement is given as false, simply enter an “F” into the square of opposition and compute (if possible) the other truth values.