Daily Drills 19 - Section 19 - Question 2

"If you're not making mistakes then you're not doing anything."– John R. Wooden

mabbott May 4, 2023

Why is it not MM --> DA? How would you diagram it?

I thought for sufficient conditions and statements you reverse and negate the conditions - here it seems to just negate them? How would this be diagrammed then?

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Emil-Kunkin May 5, 2023

Hi, when you have a conditional you start by just diagraming the original reasoning. Here, we know that if not mm then not da, since both our original sufficient and necessary conditions are negatives. When taking the contrapositive we reverse and negate.