- Sat Jan 21, 2012 12:00 am
#35735
Complete Question Explanation
Justify the Conclusion—SN. The correct answer choice is (B)
This is a very challenging question, and possibly one of the most difficult logical reasoning questions
on the test, in part because of the convoluted conditional approach taken by the author.
The stimulus begins with the author’s conclusion that there can be no individual freedom without
the rule of law. We can diagram this statement by applying the Unless Equation: the phrase modified
by “without” becomes the necessary condition, whereas the remainder is negated and becomes the
sufficient condition. Thus, the first clause of the sentence can be diagrammed as follows:
S N
Conclusion: Individual Freedom Rule of Law
Even though there are no conclusion indicators to help us identify the conclusion, note that the
remainder of the sentence contains two premises that support the observation in the first clause:
first, there is no individual freedom without social integrity, and second, pursuing the good life
is not possible without social integrity. Applying the Unless Equation again, the premises can be
diagrammed as follows:
Premise (1): Individual Freedom Social Integrity
Premise (2): Pursue Good Life Social Integrity
You should immediately recognize that the second premise is superfluous and plays no role in
determining the logical cohesion of the argument. The relationship between the first premise and the
conclusion is implicitly conditional, and, when re-worded, can be diagrammed as follows:
Premise: Individual Freedom Social Integrity
Conclusion: Individual Freedom Rule of Law
The question stem asks us to identify a statement that, if assumed, would enable to the conclusion to
be properly drawn. Despite the word “assumed” in the stem, this is a Justify question because our job
is not to identify a statement upon which the argument depends, but rather to prove the conclusion
by adding a piece of information to the premises. The sufficient condition indicator (“if”) in the
question stem is a reminder that you must select an answer that is sufficient to prove the conclusion
by using the Justify Formula:
Premises + Answer choice = Conclusion
As with most Justify questions, there is a logical gap between the premises and the conclusion. To
prove the conclusion, we must establish that social integrity requires the rule of law:
Justify Formula: Social Integrity Rule of Law
Answer choice (B) agrees with this prephrase, and is therefore correct.
Another way to approach this Justify question would be as follows:
(1) Elements that appear in the relevant premises but not the conclusion usually appear
in the correct answer. Although these premise elements do not have to appear
in the correct answer, they often do because they represent a convenient linking
point. In this argument, “Social Integrity” appears in the relevant first premise but
not in the conclusion. Therefore, it is highly likely that it would appear in the correct
answer. Its absence from answer choices (C) and (E) helps eliminate them.
(2) Elements that are common to the conclusion and at least one premise normally do
not appear in the correct answer, because there is a bridge already established that
justifies the presence of that element in the conclusion. Here, the element of “Individual
Freedom” is common to both the premise and the conclusion and need not
be present in the correct answer. Its presence in answer choices (D) and (E) helps
eliminate them.
Applying these two rules of solving Justify questions mechanistically leaves answer choices (A) and
(B) as the only possible contenders.
Answer choice (A): This is a Mistaken Reversal of the correct answer choice. After applying the
Unless Equation, this answer choice can be diagrammed as follows:
Rule of Law Social Integrity
Answer choice (B): This is the correct answer choice. After applying the Unless Equation, this
answer choice can be diagrammed as follows:
Social Integrity Rule of Law
This statement is consistent with our prephrase above, making answer choice (B) correct.
Answer choice (C): This answer choice can be eliminated quickly because it introduces an element
from the second premise of the argument (“pursue food life”), which is superfluous and has no
logical connection to the conclusion. Even if pursuing the good life requires the rule of law, this
would not be sufficient to establish that individual freedom requires it as well.
Furthermore, a smart test taker would eliminate this answer choice immediately because it does not
contain the element of “Social Integrity.” Since this element appeared in the relevant premise but not
in the conclusion, we would expect it to appear in the correct answer.
Answer choice (D): This answer choice is incorrect, because the idea of individual freedom
prevailing falls outside the scope of the argument. Furthermore, its implication is tantamount to a
Mistaken Reversal of the first premise of the argument:
Social Integrity Individual Freedom
The author asserts that individual freedom requires social integrity, not that social integrity requires
individual freedom.
Answer choice (E): This is a Mistaken Reversal of the conclusion. The author asserts that there
can be no individual freedom without the rule of law, not that there can be no rule of law without
individual freedom. Furthermore, as with answer choice (C), we can eliminate this answer choice
immediately because it does not contain the element of “Social Integrity.” Since this element
appeared in the relevant premise but not in the conclusion, we would expect it to appear in the
correct answer.
Justify the Conclusion—SN. The correct answer choice is (B)
This is a very challenging question, and possibly one of the most difficult logical reasoning questions
on the test, in part because of the convoluted conditional approach taken by the author.
The stimulus begins with the author’s conclusion that there can be no individual freedom without
the rule of law. We can diagram this statement by applying the Unless Equation: the phrase modified
by “without” becomes the necessary condition, whereas the remainder is negated and becomes the
sufficient condition. Thus, the first clause of the sentence can be diagrammed as follows:
S N
Conclusion: Individual Freedom Rule of Law
Even though there are no conclusion indicators to help us identify the conclusion, note that the
remainder of the sentence contains two premises that support the observation in the first clause:
first, there is no individual freedom without social integrity, and second, pursuing the good life
is not possible without social integrity. Applying the Unless Equation again, the premises can be
diagrammed as follows:
Premise (1): Individual Freedom Social Integrity
Premise (2): Pursue Good Life Social Integrity
You should immediately recognize that the second premise is superfluous and plays no role in
determining the logical cohesion of the argument. The relationship between the first premise and the
conclusion is implicitly conditional, and, when re-worded, can be diagrammed as follows:
Premise: Individual Freedom Social Integrity
Conclusion: Individual Freedom Rule of Law
The question stem asks us to identify a statement that, if assumed, would enable to the conclusion to
be properly drawn. Despite the word “assumed” in the stem, this is a Justify question because our job
is not to identify a statement upon which the argument depends, but rather to prove the conclusion
by adding a piece of information to the premises. The sufficient condition indicator (“if”) in the
question stem is a reminder that you must select an answer that is sufficient to prove the conclusion
by using the Justify Formula:
Premises + Answer choice = Conclusion
As with most Justify questions, there is a logical gap between the premises and the conclusion. To
prove the conclusion, we must establish that social integrity requires the rule of law:
Justify Formula: Social Integrity Rule of Law
Answer choice (B) agrees with this prephrase, and is therefore correct.
Another way to approach this Justify question would be as follows:
(1) Elements that appear in the relevant premises but not the conclusion usually appear
in the correct answer. Although these premise elements do not have to appear
in the correct answer, they often do because they represent a convenient linking
point. In this argument, “Social Integrity” appears in the relevant first premise but
not in the conclusion. Therefore, it is highly likely that it would appear in the correct
answer. Its absence from answer choices (C) and (E) helps eliminate them.
(2) Elements that are common to the conclusion and at least one premise normally do
not appear in the correct answer, because there is a bridge already established that
justifies the presence of that element in the conclusion. Here, the element of “Individual
Freedom” is common to both the premise and the conclusion and need not
be present in the correct answer. Its presence in answer choices (D) and (E) helps
eliminate them.
Applying these two rules of solving Justify questions mechanistically leaves answer choices (A) and
(B) as the only possible contenders.
Answer choice (A): This is a Mistaken Reversal of the correct answer choice. After applying the
Unless Equation, this answer choice can be diagrammed as follows:
Rule of Law Social Integrity
Answer choice (B): This is the correct answer choice. After applying the Unless Equation, this
answer choice can be diagrammed as follows:
Social Integrity Rule of Law
This statement is consistent with our prephrase above, making answer choice (B) correct.
Answer choice (C): This answer choice can be eliminated quickly because it introduces an element
from the second premise of the argument (“pursue food life”), which is superfluous and has no
logical connection to the conclusion. Even if pursuing the good life requires the rule of law, this
would not be sufficient to establish that individual freedom requires it as well.
Furthermore, a smart test taker would eliminate this answer choice immediately because it does not
contain the element of “Social Integrity.” Since this element appeared in the relevant premise but not
in the conclusion, we would expect it to appear in the correct answer.
Answer choice (D): This answer choice is incorrect, because the idea of individual freedom
prevailing falls outside the scope of the argument. Furthermore, its implication is tantamount to a
Mistaken Reversal of the first premise of the argument:
Social Integrity Individual Freedom
The author asserts that individual freedom requires social integrity, not that social integrity requires
individual freedom.
Answer choice (E): This is a Mistaken Reversal of the conclusion. The author asserts that there
can be no individual freedom without the rule of law, not that there can be no rule of law without
individual freedom. Furthermore, as with answer choice (C), we can eliminate this answer choice
immediately because it does not contain the element of “Social Integrity.” Since this element
appeared in the relevant premise but not in the conclusion, we would expect it to appear in the
correct answer.