Are negate necessary indicators the same as sufficient in the sense that the conditional and contrapositive are like twins or no?

#help Added by Admin

#feedback I know others have already provided feedback but a quick 2 min video on this would be helpful, thank you!

#help I keep accidentally choosing the answer that proposes an alternative hypothesis rather than the one that strengthens the original argument. Anyone have any advice on how to break out of this mindset? Is there something in my reasoning/thought process that I can change?

#help when we write this using formal logic notations, how do we know that its a ↔? I got lost on that

I understand why A is correct, but I'm still having trouble fully ruling out C. Any advice?

Right before let's review, is the argument actually valid in that form then or are you saying I misunderstood the structure of the argument so it's invalid? The phrasing is really complicated #help