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I am currently going through the LG bundle and I have a difficult time solving In/Out games with subcategory under time pressure. During BR I noticed in several of these games when one of the subcategories (let's call it category X ) get fulled only by putting one item in, there is reoccurring inference. The inference is, any two item from any categories that have different items of category X as their necessary condition are in a either/or relationship.
This is probably obvious to you but could you please correct me if I am wrong? Do you think having such rules might help on the actual test?
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I've definitely seen games like this before but can't think of any off the top of my head. Does anyone have suggestions for which In/Out game you could practice this inference?
@kashibrandi609 Thanks for super fast comment and writing it out so clearly. This is exactly what I meant and thanks to you it is much more clear to me :)
Let me see if I understood this correctly.
You have Ax, Bx, Cx and Dy, Ey and Fy.
Only one x can be "in".
You also have
Dy-->Ax
Ey-->Bx.
You are asking if it's correct that
Ey-->/Dy
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Yes.
Because you can write the fact that only one x is allowed as
Ax-->/Bx
Ax-->/Cx
Bx-->/Cx
Linking these (or their contrapositives) with the original premises you get:
Ey-->Bx-->/Ax-->/Dy
--------------------------------------------------
That is actually a pretty advanced inference to make, so I think you're doing better than you might assume. This is exactly what the FoolProof is supposed to do, keep doing what you're doing!