Logical ReasoningDifficulty: Hard

PT10 S1 Q20 Explanation

Government official: Clearly, censorship exists

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

TopicsParallel Flaw

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Stimulus

Government official: Clearly, censorship exists if we, as citizens, are not allowed to communicate what we are ready to communicate at our own expense or if other citizens are not permitted access to our communications at their own expense. Public unwillingness to provide artistic activities cannot, therefore, be described as censorship.

What this question is testing

Parallel Flaw

Conclusion

The official says: refusing to fund certain activities can't be censorship.

Evidence

The definition: censorship is happening if either (a) we're blocked from communicating at our own expense, or (b) others are blocked from receiving our communications at their own expense. Funding refusal involves neither.

Evaluate

Notice the structure. The definition gives two ways to know censorship is happening — sufficient conditions. The official then says: this situation has neither, so it's not censorship. That's denying the antecedent. The definition didn't say "only these things are censorship"; it said "if these things, then censorship." Other forms of censorship could still exist.

Goal

Find the answer that has the same shape: a sufficient-condition definition, then an argument that "not the sufficient conditions, therefore not the concept."

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The question
20.

The flawed reasoning in the government official’s argument is most parallel to that in which one

Answer choices

  1. Bad Validity Match7% picked this

    All actions that cause unnecessary harm to others are unjust; so if a just action causes harm to others,

    This argues from "all unnecessary-harm actions are unjust" — a "necessary cause" claim about unjust acts. It then reasons that if a just action causes harm, the harm must be necessary. That's contraposition (just → not unnecessary-harm), not denial of the antecedent. Different flaw, different shape.

  2. Bad Validity Match4% picked this

    Since there is more to good manners than simply using polite forms of address, it is not possible to say on first meeting a

    This argues from "good manners are more than just polite forms" to "you can't tell on first meeting." That's a different structure entirely — a claim about complexity producing an evidentiary limitation. No sufficient-condition-denying-the-antecedent move.

  3. Bad Validity Match4% picked this

    Acrophobia, usually defined as a morbid fear of heights, can also mean a morbid fear of sharp objects. Since both fears have the same

    This argues from shared name to shared origin — that's an etymological/equivocation flaw, not a denial-of-antecedent flaw. Different structure.

  4. Correct69% picked this

    There is no doubt that a deed is heroic if the doer risks his or her own life to benefit another person. Thus an

    Why this is right

    Same flawed pattern. The first sentence states a sufficient condition for heroism: if the doer risks his/her own life to benefit another, the deed is heroic. The argument then concludes that an action endangering only the doer's reputation is not heroic — denying the antecedent (no life risk → no heroism). Just like the original, it treats sufficient conditions as if they were the only conditions for the concept. Same shape, same flaw.

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

  5. Bad Validity Match16% picked this

    Perception of beauty in an object is determined by past and present influences on the mind of the beholder. Thus no object can be

    This argues that since beauty perception varies, no object is beautiful. That's a generalization-from-relativity flaw, not a denial-of-antecedent flaw. Different structure.

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