Hello everyone! I was curious about using IF/Every with negations. I understand that you essentially negate the necessary variable in the sentence and move on ward (These are the quiz's im talking about https://classic.7sage.com/lesson/quiz-negation-4-answers/ Q.2). My question is that when we look at every as a sufficient in group one, we never had a negation attached to it. When do I know to negate the premise after every and when do I know to take it face value as in previous lessons? Unless I missed it, we were never taught why we are suddenly not taking every at face value as the sufficient and leaving it at that?