Questions in terms of falsity

[Lucas]

I'm having trouble understanding the table on page 77.

When a question asks, for example, "Which one of the following must be false EXCEPT," it seems to me the correct answer choice would be "must be true," but the table suggest the correct answer would be "cannot be true."

Why is that? Does "except" not ask for the opposite of what is being asked? Please help.

[Lucas]

NM. I figured it out.

[Dave Killoran]

Hi Lucas,

Good work on figuring that out! Just for any other readers, I'm going to explain it anyway

The first step in handling, "Which one of the following must be false EXCEPT" is to turn the "false" portion into terms of "true." That results in, "Which one of the following cannot be true EXCEPT."

The second step is to account for the "except" portion, which asks for the opposite of Cannot Be True (and that is could Be True), and thus the interpretation of the question stem becomes:

• The 4 Incorrect Answers are: Cannot Be True
  
  The 1 Correct Answer is: Could Be True

Please do not hesitate to let me know if you run into any other questions. Thanks!