Mike.Kim Wrote:That is correct.
One way to think about it is --
If the original conditional is " If X, then Y," the contrapositive, in words is -- "Whatever is not Y must mean no X."
The original condition is - A3 -> C > B.
When is C> B NOT true? When C < B or (when the game allows) when C = B. Therefore, you must consider both of these situations in coming up with the contrapositive.
Mathematically speaking, imagine there was a rule "Only those who score over 100 points win the game." Who would NOT win? Either those who score less than 100, or exactly 100. Hope that helps!