I really don’t understand where this rule ” For conditionals, A and B negates to A → /B ” came from or how it would be applicable to the actual exam. This comes from the Negation skill builder in the Logic of Intersecting Sets module. It was never stated beforehand in neither the negating conditional statements or elsewhere, at least to my knowledge. I understand it intuitively as you’re saying that rather than both A and B being true simultaneously, you’re positing that /B is a necessary condition of A and thus can’t exist together. However, we previously learned about negation of the conjunction “and” in conditional relationships as being A and B → C negated to /C → /A or /B as specified by De Morgan’s law. I guess I’m just struggling to see, how to tell the difference or when/how to use this new rule in context with a question on the LSAT. Is the rule just referring to when you have both premises A and B as part of the argument a way to negate it, is by using that rule. Like I don't see how just A and B can exist on their own in question. I feel like there must be either A and B -> C or C -> A and B included when encountering this in a question. Greatly appreciate any comments or help someone could add!
#Help
As a further explanation of the point above, this is also talking about an abridgment made in the 17th century and not in our modern world. At the time, actors were actually not given the whole script and actually just their lines with a few words before as a cue in. Just another example of why you can't let your personal experience and knowledge create sub-conscious assumptions that will affect how you answer the question!