PT43.S2.Q7-Failure to rotate crops

1234abcd-1

How would you diagram the highlighted sentence. It has three conditional indicators ("if"- group 1 sufficient, "unless"- group 3 negate/sufficient and "cannot" group 4- negate, necessary)?

https://imgur.com/JTtrJM9

Admin Note: https://7sage.com/lsat_explanations/lsat-43-section-2-question-07/

MissionLsat

If the soil nutrients are completed depleted then

Additional crops can be grown arrow fertilizer applied to the soil.

This should work well. The first situation is kinda introducing a sub world. You don't need to include all three statements in one diagram.

lsat_muse

soil nutrients completely depleted + /fertilizer -> /additional crops grown
soil nutrients completely depleted + additional crops grown -> fertilizer

In the explanation video, JY refers to this as a conditional statement with an additional embedded conditional statement. You can tackle each separately by first dealing with the embedded conditional statement (let's call it B: "additional crops cannot be grown unless fertilizer is applied to the soil") and then turning to the outer conditional statement (let's call it A: "if the soil's nutrients are completed depleted").

A -> B
soil nutrients completely depleted -> (/fertilizer -> /additional crops grown)

The arrow turns to "and" when you "distribute" the logic from the outer conditional to the embedded conditional:

soil nutrients completely depleted + /fertilizer -> /additional crops grown

You can even take the contrapositive of the embedded conditional and then "distribute" the logic, like so:

soil nutrients completely depleted -> (additional crops grown -> fertilizer)
soil nutrients completely depleted + additional crops grown -> fertilizer

When you're just looking at the embedded conditional, "additional crops cannot be grown unless fertilizer is applied to the soil," and you have both group 3 and group 4 conditional indicators, you can just pick one and go for it. For example, if you pick group 3 and you negate/sufficient the "unless" statement, it becomes /fertilizer -> /additional crops.

1234abcd-1

Thank you!! @MissionLsat @lsat_muse