Logical ReasoningDifficulty: Hard

PT140 S1 Q21 Explanation

Lawyer: If you take something

A free, expert breakdown of this official LSAT Logical Reasoning question.

TopicsFlaw

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Stimulus

Lawyer: If you take something that you have good reason to think is someone else's property, that is stealing, and stealing is wrong. However, Meyers had no good reason to think that the compost in the public garden not wrong for Meyers to take it.

What this question is testing

Flaw

Your task

Describe the reasoning error the argument actually commits.

Common trap

Answers that name a real logical flaw the argument doesn't actually make.

Winning move

Articulate the gap in the reasoning yourself, then match it to the choice that describes that gap.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
21.

The reasoning in the lawyer's argument is flawed in that

Answer choices

  1. Wrong Flaw12% picked this

    confuses a factual claim with a

    This argument was committing a Fact vs. Opinion mistake. It does have a premise that is presented as factual (Meyers didn't have good reason) and a conclusion that sounds like a moral judgment (Meyers didn't do anything wrong). But it wasn't wrong for the author to go from fact to moral judgment, because the conditional rule she cited moves from fact to moral judgment. The logical problem was that the author didn't go from "the Trigger is true, so the Outcome is true", she went from "the Trigger is false, so the Outcome is false".

  2. Not Assumed18% picked this

    takes for granted that Meyers would not have taken the compost if he had good reason to believe that

    The author only dealt with what actually happened, so we can't accuse her of making assumptions about what might have happened in some counterfactual. Her conclusion is simply that Meyers didn't do anything wrong, not that Meyers is incapable of doing something wrong, or that Meyers can be trusted to not do anything wrong (or anything like that, more expansive, that would possibly make this counterfactual relevant).

  3. Correct61% picked this

    takes a condition that by itself is enough to make an action wrong to also be necessary in order for

    Why this is right

    This describes the Necessary vs. Sufficient flaw. "Taking something you believe to be someone else's" is a condition that by itself is enough to make an action wrong, but it's not the only thing that can make it wrong. It would be like if we said, "Burning down a building is called arson, and arson is wrong. But Mandy didn't burn down any buildings, so she didn't do anything wrong." She might not have committed arson, but she might have done something else wrong.

    Skill tested: Flaw · how this choice captures the argument's function is the move to repeat next time.

  4. Not an Objection2% picked this

    fails to consider the possibility that the compost was

    The author seems to explicitly consider this possibility when she mentions that the compost was from a public garden. Even if we granted that the compost was Meyers' property (maybe it's a community garden, so it's public but he still owns this compost?), this would only help the author's argument that Meyers did nothing wrong.

  5. Bad Premise/Conclusion Match7% picked this

    concludes that something is certainly someone else's property when there is merely good, but not conclusive, reason to think that

    Does the author conclude that something is certainly someone else's property? Nope. She concludes that Meyers did nothing wrong. We could eliminate based on this. Was the evidence a premise that there is good but not conclusive reason to think that the compost is someone else's property? Nope. The evidence was that Meyers had no good reason to think the compost was someone else's.

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