Sufficient & Necessary Questions - - Question 45

Two things are true of all immoral actions. First, if they are performed in public, they offend public sensibilities....

Lauren-Au July 9, 2019

Can you please write out the diagram for this?

I'm not quite understanding how best to diagram this out and come to the proper conclusion. Can you please diagram out the question and answer please? @lsatmax

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shunhe January 6, 2020

Hi @Lauren-Au,

Sure, let me try to help diagram this for you.

IA = immoral action
PP = performed in public
OPS = offend public sensibilities
AFG = accompanied by feelings of guilt

IA & PP - > OPS
IA - > AFG

Now, the answer tells us that there's a kind of immoral action (not performed in public) that isn't accompanied by feelings of guilt. We could diagram this out, but it's not necessary. The second premise tells us that IA - > AFG. That means no matter what, ALL immoral actions will be accompanied by feelings of guilt, no matter what qualifiers we put there. Inside, outside, red fish, blue fish, it's ALL accompanied by feelings of guilt, and so we know for a fact that (A) must be false. Hope this helps!