once I drew out the logic in a map, it was easy to connect the missing premise

I overthought the "not all"

Q5: doesn't the "can't" in "spellcasters can't cast 9th level spells" mean that it should be the necessary condition?

Can a tutor explain how this question differs from the Joggers and Stretching question we saw earlier? In the Joggers question, the correct AC is that the people who are most prone to injury are the ones who developed the habit to stretch. For this one, a similar answer (E) is wrong. Is it because in this question the people studied haven't self-selected into 2 groups? #help

We do need you JY, all of us on this platform looool

Kevin's note that we shouldn't be too concerned with speed yet was on point. I was just stressing that I took too long for the previous section's drills.

leaving a comment here so that I remember to come back to review this one

Thank you for the release, been waiting for this!

For #3's second line I wrote

/Written down -> /Truth

I apply the rule for group 3 here, taking "written down", negate it, and use it as the sufficient condition. Since the sentence specifies "no myths" so we apply the rule for group 4 and also negate "Truth"

so contrapoint is

Truth -> Written down

The note in the explanation says using the "written down" idea as the sufficient condition is fine, but now "Truth -> Written down" can't be chained with 1st sentence. Am I misunderstanding some of the concepts from Group 3 or 4? #help