u/Zestyclose-Target806

So I have an answer key for this, which is where I got the additional variables that are in purple on the top line of each table.

I am really trying to understand why they are there though so that I can move forward with the rest and actually understand it all.

I’m assuming it is so that every variable in the compound statement gets its own true/false? I know I probably shouldn’t have let myself look at the answer key at all but I really need to understand so I can actually build off of this😭