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Hi All, I'm racking my brain right now with these SA questions, and I would greatly appreciate the community's help. While I can sort of diagram out the right answer, I don't exactly get why certain elements don't work.
For example:
If the support states that:
Don't Sleep -> Tired -> Prone to Mistakes
and the Conclusion is:
Don't sleep -> Fired
Why is the Sufficient Assumption: "Prone to Mistakes -> Fired" and not "Tired -> Fired"?
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2 comments
Wow, thanks @yuchengya467 for painting that picture. It's much clearer to me now!
from my understanding, if I simplyfie your stimulus into lawgic:
A-->B-->C
?
..................
A--->D
We're looking for the inference that can link C to D, so we can link all elements up to: A-->B-->C-->D. If getting this, all inference are included (A-->C, A-->D, B-->C, B-->D).
However, what you're suggesting would be:
A-->B-->C
B-->D
..................
A-->D
Of course you can get a A-->D, but you're also getting a B to C and D. C and D under this scenario is not related, whereas in the A-->B-->C-->D world, C-->D.
Hope this helps.