Logical ReasoningDifficulty: Medium

PT120 S3 Q17 Explanation

Art critic: Abstract paintings are

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

TopicsNecessary Assumption

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Stimulus

Art critic: Abstract paintings are nonrepresentational, and so the only measure of their worth is their interplay of color, texture, and form. But for a painting to spur the viewer to political action, instances of social injustice must be not only represented, but can never be a politically significant art form.

What this question is testing

Necessary Assumption

Your task

Find the assumption the argument requires in order for its conclusion to hold.

Common trap

Answers that would help the argument but aren't strictly required (sufficient, not necessary).

Winning move

Negate each choice — the right one breaks the argument when negated.

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

The question
17.

Which one of the following is an assumption that is required by the

Answer choices

  1. Too Strong: cannot12% picked this

    Abstract painting cannot stimulate people to

    This argument already established that abstract painting doesn’t spur people into political action; it doesn’t need to assume the extreme position that it can’t stimulate people into any action.

  2. Out of Scope: insignificant activity4% picked this

    Unless people view representations of social injustice, their political activity

    This argument was about whether a certain art form was politically significant. This answer is tossing a word salad and suddenly talking about whether political activity is significant.

  3. Too Strong3% picked this

    Only art that prompts people to counter social injustice is

    Too Strong: only Out of Scope: counter social injustice We’re only talking about spurring / prompting people into political action, not necessarily countering social injustice. We’re also only talking about whether an art form is politically significant, whereas this answer is trying to define a rule for all significant art. When an answer on Necessary Assumption is conditional, we can also look at how it would be diagrammed (and its contrapositive) and consider whether that would match any move the author made. Doesn’t spur ? Not people to counter significant social injustice art It’s very close to what we want, but we want Doesn’t spur people ? Not politically into political action significant art

  4. Correct75% picked this

    Paintings that fail to move a viewer to political action cannot

    Why this is right

    This provides the missing link we predicted. Doesn’t spur people ? Not politically into political action significant art If we negated this, we could object to the argument: “Hey, author — sure abstract paintings can’t represent social injustice, so they can’t spur people into political action. But paintings that fail to move a viewer to political action can still be politically significant. So you can’t conclude that abstract painting is a politically insignificant art form.”

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

  5. Out of Scope6% picked this

    The interplay of color, texture, and form is not a measure of the worth

    Out of Scope: representational Too Strong: not a measure Unmentioned ? Opposite This answer is doing the age old trap answer pattern of pretending like if the author says “Tall children love their moms” that it’s somehow assuming that “children who aren’t tall don’t love their moms”. Because the argument said that for nonrepresentational paintings, the interplay of color / texture / form was the measure of the worth, this answer is saying “oh, then you’re assuming that for representational paintings, those things aren’t any measure of worth”. This argument did need to assume that “the interplay of color, texture, and form cannot represent instances of social injustice in a clearly comprehensible way”, but that’s it.

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