Answer choice (A) concludes that Ted's statement is WT, which is an immediate red flag, as WT is not a necessary condition in any of the given conditional relationships and therefore cannot be concluded no from the information in the stimulus.
I got this question right and I do believe that I understand it. However, I just want to clarify this point above. In principle questions with sufficient and necessary conditions, can we only draw valid conclusions about the
necessary conditions of the statements? As soon as the sufficient conditions are met, we also know that the necessary conditions must occur, must have occurred, or will occur in the future.
Thus, in this question, we can only draw a few, limited conclusions: (1) someone or some statement is truthful and have no intention to deceive, (2) someone or some statement is not wholly truthful, (3) someone is lying or something is a lie, (4) someone did not clarify and someone did not have intention to deceive. These are the necessary conditions of the two conditional statements given by the stimulus, along with the necessary conditions of the contrapositives of those statements. Is this correct?
It follows that we cannot draw any conclusions about something being not a lie or something being wholly truthful. Is this correct? Would this then be good enough reason to immediately eliminate answer choices (A), (B), and (E)? I actually went into each answer choice to examine the details but I'm just wondering if I would be able to eliminate based on the conclusions that each answer choice purports to have successfully drawn, given that we may not have enough information to actually draw those conclusions.
And, what has confused me somewhat, is this: Am I making an unwarranted inference if I conclude from the first conditional statement (i.e., wholly truthful
true and made without intended deception) whether or not something is wholly truthful? In other words, if an answer choice tells me that if a statement is true and that it is without an intention to deceive, and I concluded that the statement must be wholly truthful, I would be making a
Mistaken Reversal, correct? I know how to pick out Mistaken Reversals and Mistaken Negations in other question types, but for some reason, with Principle questions, I've found myself guilty of making Mistaken Reversals. Could someone clarify this for me?