Which one of the following could be the order in which the plays are performed, from first to last?
Abigail-Okerekeon February 22, 2022
Rules 1 & 2
For rules 1 and 2 I wrote them as standard conditional statements. Along with the contrapositives
R1: 1--> 5
R2: 2--> 7
After watching the explanations, I see Matt reversed the logic for some questions. Can someone please explain why this was okay in this instance? Misunderstanding this caused me to get 3 questions wrong out of the 5.
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Good question- you are right that normally you are not allowed to reverse the logic, but in this case that actually is ok.
Rules one and two are phrased as if 1-5 and if 2-7. However, this has the effect as saying that the same play must be performed on days 1 and 5 and on 2 and 7. This creates bidirectional conditionals- so if 1 then 5 and if 5 then 1. Since we know that both days are filled and that both days are the same play, we are allowed to reverse.
