Daily Drills 26 - Section 26 - Question 4

P: ?P: not B → AC: X → B

tori912 May 1, 2018

I'm noticing a pattern

Why did I get it backwards?

Replies
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Mehran May 5, 2018

@tori912 by backwards do you mean the contrapositive, X ==> not A?

Or are you reversing sufficient and necessary, i.e. not X ==> A?

kwnda21@gmail.com July 25, 2023

me as well I got not x==> a