#15 - Rhonda will see the movie tomorrow afternoon only if

[saiffshaikhh@gmail.com]

Using the unless equation for the second sentence, would it become if ted agrees to the concert -> Paul will go too?

Or would it be If Paul does go -> Ted agreed ?

[Jeff Wren]

Hi saiffshaikhh,

It would be the second one.

If Paul does go -> Ted agreed

This appears as the second premise in the original explanation (Post #1)

Paul goes to concert Ted goes to concert

As a reminder, "unless" is a necessary indicator and "unless" is modifying "Ted agrees to go to the concert," so that term is the necessary condition. The remaining term "Paul will not go to the concert" gets negated to "Paul will go to the concert" and becomes the sufficient condition.

Be sure to study the Unless Equation and practice it until you know it perfectly. You shouldn't even have to think about how to diagram "unless" on test day because you've studied/practiced it so much.