Logical ReasoningDifficulty: Easy

PT159 S3 Q13 ExplanationEvery human’s brain contains a mental representation

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

TopicsMain Conclusion

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Stimulus

Every human’s brain contains a mental representation of the external world. Yet, this representation necessarily leaves out much detail. After all, the external world is much larger and more complex than the human brain, and there is something larger and more complex than itself.

What this question is testing

Main Conclusion

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
13.

Which one of the following most accurately expresses the conclusion drawn in

Answer choices, explained

  1. Correct74% picked this

    The human brain's representation of the external world leaves out

    Why this is right

    Answer A is correct.

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

  2. Trap3% picked this

    The external world is much larger and more complex than a

  3. Trap15% picked this

    The human brain cannot completely represent something larger and more complex

  4. Trap2% picked this

    The human brain contains a mental representation of the

  5. Trap5% picked this

    It is impossible for any entity to completely represent anything larger and more

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