Statement Negation Drill #10

[momgoingbacktoschool]

Hello,

When I negated the statement, I got "Exactly one police car might not reach the scene in time." Therefore, I assumed that reaching the scene was the necessary condition. Can you explain how I should have known that "exactly one police car" was the necessary condition instead?

Thank you!

[Dave Killoran]

Hi Mom,

Essentially, your negation is equivalent to what is in the book. The idea is that it wasn't just one car, and yours does convey that since it suggests a number different than the "one."

Side note: "exactly one" isn't a necessary condition in my opinion. While any absolute statement can be turned into a conditional, you don't need to have a conditional statement to use the Negation technique

Thanks!