Logical ReasoningDifficulty: Medium

PT126 S3 Q10 Explanation

Lawyer: This witness acknowledges

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

TopicsSufficient Assumption

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Stimulus

Lawyer: This witness acknowledges being present at the restaurant and watching when my client, a famous television personality, was assaulted. Yet the witness claims to recognize the assailant, but the witness's testimony should be excluded.

What this question is testing

Sufficient Assumption

Your task

Find the assumption that, if added, guarantees the conclusion follows.

Common trap

Answers that only partly bridge the gap, leaving the conclusion unproven.

Winning move

Identify the new term in the conclusion and pick the choice that links it to the evidence.

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

The question
10.

The lawyer's conclusion follows logically if which one of the following

Answer choices

  1. Negated Assumption6% picked this

    If a witness claims to recognize both parties involved in an assault, then the witness's

    This answer negates the RA + RC → ~WTE assumption of the argument.

  2. Weakens1% picked this

    There are other witnesses who can identify the lawyer's client as present

    If anything, this supports the accuracy of the witness’s testimony.

  3. Out of Scope – Term Shift2% picked this

    It is impossible to determine whether the witness actually recognized

    There is a difference between claiming to recognize and actually recognizing the assailant. The lawyer’s argument does not rest on whether the witness actually recognized the assailant, but rather on what the witness claimed.

  4. Correct79% picked this

    The testimony of a witness to an assault should be included only if the witness claims to recognize both

    Why this is right

    This bridges the gap WTE → RA + RC between recognizing both parties to the assault and whether to exclude the witness’s testimony. This answer conceals it’s meaning by way of a contrapositive.

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

  5. Too Weak12% picked this

    It is unlikely that anyone would fail to recognize the

    This does undermine the witness’s testimony, but is too weak to complete invalidate. Nor does it offer any justification for the lawyer’s conclusion that the witness’s testimony should be excluded.

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