... begins with a pretty standard conditional statement:
(Economic ... we are given a quasi-conditional statement: We can't diagram ... we only have one true conditional statement (and one of ... must be true given our conditional statement and what we ...
The first sentence is just context and does not have a place in our conditional chain. You are correct that the quantifier ELCI should "some" over to LCI. So replace ELCI --> LCI with ELCI -some-> LCI. Still ac(A) is correct. Nice spot!
@tanes256. Thanks, but I was asking for denying the conditional statements (group 1~4). Should I just place "It's not the case that" in front of the conditional statements to deny them?
... an intersection, not a new conditional statement. Here’s the lesson ... denying the sufficient) refers to conditional statements, but as you can ...
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The original statement is a conditional, when negated yields /u ... . When you negate a conditional, you end up with ... again. It’s for negating conditional statements. It literally says " ... Negating the Conditional Sentence” in bold.
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@Martin01 Do you have an example of a question that gives you trouble? Most MBT questions are based on conditional reasoning but it's sometimes a little hard to see it as such