1.
Is the statement "1 + 1 = 2 or any two points determine a line" true or false? -> False
True
False

2.
What is the converse of r → z ? -> z → r
True
False

3.
Which of "and," "not," and "or" link two statements together? -> "not"
True
False

4.
How many values of x make the statement "x ≤ 5 and x ≥ 5" true? -> Infinitely many
True
False

5.
Suppose we know a → b , b → c . If we know b is true, may we infer c ? -> Yes, by detachment
True
False

6.
Is the contrapositive of "Everything brown is a dog" true? -> No, and a white dog is a counterexample
True
False

7.
Which is an example of something "white or not soft?" -> White rock candy
True
False

8.
Suppose that p → q and p → r . May we infer that q → r ? -> No
True
False

9.
What is the converse of not p → not q ? -> not q → not p
True
False

10.
The statements p → q and q → r are given. If we know q to be true, which of the following CANNOT be assumed as true? -> p
True
False