Logical ReasoningDifficulty: Medium

PT137 S2 Q18 Explanation

Censor: All anarchist novels

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

TopicsPrinciple-Strengthen

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Stimulus

Censor: All anarchist novels have two objectionable characteristics: a subversive outlook and the depiction of wholesale violence. Therefore, it is permissible to ban any anarchist novel than good to society.

What this question is testing

Principle-Strengthen

Your task

Break the argument into its conclusion and evidence, then do exactly what the question stem asks with that structure.

Common trap

Answers that sound relevant to the topic but don't connect to the argument's actual reasoning.

Winning move

Predict what a right answer must do, then test each choice against the conclusion-evidence 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
18.

Which one of the following principles, if valid, most helps to justify

Answer choices

  1. Bad Conclusion Match Bad Premise Match3% picked this

    If a novel has a subversive outlook but does not depict wholesale violence, it is

    This rule has "impermissible to ban" on the right of the arrow. We need "permissible to ban" on the right of the arrow. Also, this rule would not apply to anarchist novels, since they all have both subversive outlook and wholesale violence.

  2. Bad Premise Match11% picked this

    If a novel depicts wholesale violence, then it is permissible to ban it if doing so would do more

    This rule says: novel depicts banning it permissible wholesale and would do → to ban it violence Harm > Good We were never told that "banning anarchist novels would do more harm than good". The author was saying it's permissible to ban anarchist novels that themselves would do more harm than good. Presumably, by banning it, we would do more good than harm.

  3. Reversal5% picked this

    It is permissible to ban a novel only if the novel has a subversive outlook and would do more

    "only if" always acts like the conditional arrow, appearing just before the Right Side (necessary idea). This answer then looks like this: permissible has subversive outlook to ban a → and novel would do more than harm If this rule were flipped, it would work to get us from the premise to the conclusion. Any time you see an answer that, when diagrammed, would look like "If Conclusion ...", it's wrong.

  4. Correct77% picked this

    It is permissible to ban a novel that would cause society more harm than good if the novel has

    Why this is right

    This rule looks like this: novel has two or permissible to ban more objectionable → a novel that causes characteristics more harm than good Do anarchist novels have two or more objectionable characteristics? Yes, they all have at least two: depict wholesale violence and subversive outlook. So then according to this rule it's permissible to ban any anarchist novel that causes more harm than good, which matches out conclusion.

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

  5. Bad Conclusion Match3% picked this

    It is permissible to ban a novel that depicts wholesale violence only if that novel has at least

    "only if" always acts like the conditional arrow, appearing just before the Right Side (necessary idea). This answer then looks like this: permissible to ban a → has at least one other novel that objectionable characteristic depicts WV We need "permissible to ban" on the right side, not the left side. Any time you see an answer that, when diagrammed, would look like "If Conclusion ...", it's wrong.

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