#help Why is the "only" vehicles that have high resale value in the sufficient clause? I thought that only was a necessary indictator?

#feedback Does he not finish the discussion of question 16?

Because I thought with negate sufficent, you could choose either to negate and then that becomes the sufficent?

#help, When you're doing the group 3 negation, why can't you do it like this: if we will be able to determine this --> some are as intelligent as us. If you contrapose it, it becomes: if some are not as intelligent as us--> can determine. I realize that this comes to the wrong conclusion, but I'm not sure why!

unfortunately I am a fish and i do take bait