Page 2-37, Question 22

[Blueballoon5%]

Hi! This is a sufficient and necessary diagramming drill. The sentence is "No one in the Latin department is disallowed from teaching multiple classes this semester." The answer key in the lesson book states that this construction is "L --> TC" (If you are in the Latin department, then you are allowed to teach multiple classes this semester). I am not completely sure how this diagramming works. Does the "no one" and "disallowed" cancel each other out (like a double negative)?

Hope you can help! Thanks!

[AthenaDalton]

Yes, the double negatives cancel out. These two phrases mean the same thing:

Double negatives: No one in the Latin department is disallowed from teaching multiple classes this semester.

No double negatives: Everyone in the Latin department is allowed to teach multiple classes this semester.

In tackling questions like this that use obtuse language, it's ok to translate them into plain English before making a diagram.

Good luck studying!