At first I was really confused on how I could use the lesson on negating "some" statements to get to the answer in Question 2.

After revisiting I think I understand. Writing this out for my own sake (and anyone who could find it helpful).

This is the translation rule in the lesson:

A <-s-> B = /(A<-s->B) = A --> /B

This is the translation in Question Two:

A <-s-> /P = /(A<-s->/P) = A --> P

Translation back to English:

A --> P = All alphabets are phonetic

I think part of the confusion is that based on the translation rule, I was expecting to end with a negated necessary condition (i.e. /B). But in the case of question two, P (which is substituted in for B), was already negated. Meaning, after going through the process of negation in step two, you end up with P rather than /P.

@aspiringsmartperson I saw someone upvoted this but I figured it out -- once you complete the questions, click the magnifying glass with the plus that is beside the question name

eg. on the left side question, question one is labeled PT110.S2.Q23 and highlighted in blue, the magnifying glass beside that is where the video is.

Click on it and then you will see an "explanation" tab pop up near the top right part of your screen (or at least that was my experience)

@aspiringsmartperson I am still struggling a bit, but Kevin explains it a bit in his explanation video. For anyone also still confused, it is a sufficiency-necessity mistake (I just need to realize how I made that mistake).

I understand why E is correct, but I don't understand why B is incorrect.

I have it mapped as /inaccurate > s > m > slq.

I thought we could say McGuiness will necessarily be appointed since we meet the condition of the polls being a "good indication" of how the election will turn out -- in other words the sufficient condition of /inaccurate is being met.

Can anyone help me out? Bear with me, I'm just starting. Thanks :)

Where are the video explanations for these?