I had some difficulty with this drill because I wasn't focused. I have a couple of questions. I this first premise a quantifier-type? Concerning the missing premise, how can I determine a proper necessary component, or am I just making things hard for myself. I want to clarify this so I won't waste time during the actual test.
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The missing premise drills are given to prepare us for the strengthen with sufficient premise question type. Our goal on strengthen with sufficient premise questions is to add a premise that, in conjunction with the preexisting premises, will guarantee that the conclusion is true.
In this case, the conclusion is C -most? not B.
I recommend starting these questions by separating the conditions of the conclusion:
C not B
Our goal is to bridge this gap. Fortunately, we always have evidence that will get us part of the way there. Here, we can add the premise, C -most? A, to the above diagram:
C -most? A not B
After adding every premise, you simply have to fill in the gap. In this case, the gap is from A to not B, so our answer could be either of the following:
A ? not B or contrapositive: B ? not A
Answer choice D fits the bill.
LamontFebruary 13, 2022
Thanks, if I need further guidance, I will post my question as well as attend an office hour.
